feat(lessons): add new lessons for english section
This commit is contained in:
shafin-r
@ -1,60 +1,107 @@
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import React, { useRef, useState, useEffect } from "react";
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import { ArrowDown, Check, BookOpen, AlertTriangle, Zap } from "lucide-react";
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import EvidenceHunterWidget, {
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type EvidenceExercise,
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} from "../../../components/lessons/EvidenceHunterWidget";
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import { Check, BookOpen, Lightbulb, Zap, Target } from "lucide-react";
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import { PracticeFromDataset } from "../../../components/lessons/LessonShell";
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import {
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INFERENCES_EASY,
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INFERENCES_MEDIUM,
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} from "../../../data/rw/inferences";
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import EvidenceHunterWidget, {
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type EvidenceExercise,
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} from "../../../components/lessons/EvidenceHunterWidget";
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import RevealCardGrid, {
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type RevealCard,
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} from "../../../components/lessons/RevealCardGrid";
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import useScrollReveal from "../../../components/lessons/useScrollReveal";
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interface LessonProps {
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onFinish?: () => void;
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}
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/* ── Data for RevealCardGrid widgets ── */
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const INFERENCE_TYPES: RevealCard[] = [
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{
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label: "Valid / Necessary",
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sublabel: "CORRECT on SAT",
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content:
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"Must be true if the stated evidence is true. Example: If 14% of earthquakes are supershear → 86% are NOT supershear.",
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},
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{
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label: "Possible / Speculative",
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sublabel: "WRONG on SAT",
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content:
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'Could be true, but might not be; goes further than the evidence. Example: "Researchers must want more funding" — not stated.',
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},
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{
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label: "Contradicted",
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sublabel: "WRONG on SAT",
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content:
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'Directly conflicts with stated evidence. Example: "Exercise improves fitness equally for all" when passage says otherwise.',
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},
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{
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label: "Real-world true but unsupported",
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sublabel: "WRONG on SAT",
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content:
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"True in reality but not implied by the passage. The SAT only rewards what the text guarantees.",
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},
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{
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label: "Half-valid",
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sublabel: "WRONG on SAT",
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content:
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"First part follows from the evidence, but the second part goes beyond what the evidence requires.",
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},
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];
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const CHAIN_ERRORS: RevealCard[] = [
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{
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label: "Stopping too early",
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content:
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'Stopping at the finding rather than the conclusion (e.g., stopping at "feldspar was found" rather than following its implication for the competing theories).',
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},
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{
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label: "Skipping a step",
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content:
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"Jumping to a conclusion that goes further than the chain allows by skipping an intermediate logical step.",
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},
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{
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label: "Scope confusion",
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content:
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"The chain applies to one specific region or group, but the answer makes a universal claim about all regions or groups.",
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},
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{
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label: "Time assumption",
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content:
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"The evidence describes a current or past state, and the answer makes a claim about a future state without justification.",
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},
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];
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const EVIDENCE_EXERCISES: EvidenceExercise[] = [
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{
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question:
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"What can be inferred from this passage about the long-term effects of the policy?",
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"Based on the passage, which sentence provides the strongest basis for inferring that Dr. Patel's research contradicts established scientific consensus?",
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passage: [
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"When the city introduced congestion pricing in 2019, many business owners predicted economic disaster.",
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"Three years later, traffic in the city center had declined by 28%, and air quality had measurably improved.",
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"Revenue from the pricing scheme was reinvested in public transit, increasing bus and metro frequency by 40%.",
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"Business revenues in the city center rose by an average of 12% over the same period, contradicting earlier fears.",
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"Several other major cities are now closely studying the program as a potential model.",
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"Dr. Patel has spent fifteen years studying migration patterns of monarch butterflies.",
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"Her field stations span the entire North American flyway, from Canada to Mexico.",
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"She has published 47 peer-reviewed papers, each building on data collected across multiple seasons.",
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"Her most recent paper challenges the assumption that butterflies navigate primarily by magnetic fields.",
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"Instead, she proposes that polarized light plays a more significant role than previously recognized.",
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],
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evidenceIndex: 3,
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explanation:
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"Sentence 4 most strongly supports the inference that the policy had positive long-term effects on the local economy — directly contradicting predictions of economic harm. This is a valid inference because it follows necessarily from the evidence. Sentence 5 supports the inference that the policy was considered successful, but sentence 4 specifically addresses the economic outcome.",
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'Sentence 4 is the basis for inferring contradiction with consensus. The word "challenges" indicates Dr. Patel is actively contradicting an established "assumption." This makes the inference valid — not speculation — because the passage directly states she is challenging the field.',
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},
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{
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question:
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"What does the passage imply about the relationship between diet and cognitive decline?",
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"Which sentence provides the strongest basis for inferring that the plastic bag ban had unintended consequences?",
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passage: [
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"Alzheimer's disease affects more than 55 million people worldwide.",
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"In recent years, researchers have shifted focus from genetic factors alone to lifestyle factors, including diet.",
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"Several large-scale studies have found that individuals who follow Mediterranean-style diets — rich in vegetables, fish, and olive oil — show slower rates of cognitive decline.",
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"However, researchers caution that correlation does not establish causation, and no single food has been proven to prevent Alzheimer's.",
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"Still, the evidence is strong enough that many neurologists now discuss dietary patterns with patients at risk.",
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"In 2015, the city council banned plastic bags at all grocery stores.",
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"The ban was intended to reduce plastic waste in local waterways.",
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"Plastic bag litter in rivers decreased by 40% in the first year.",
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"However, sales of heavier-gauge trash bags increased by 350% over the same period.",
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"Environmental analysts noted that thick trash bags contain more plastic by weight than the thin bags they replaced.",
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],
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evidenceIndex: 2,
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evidenceIndex: 3,
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explanation:
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'Sentence 3 most directly supports the implication: Mediterranean diets are associated with slower cognitive decline. This is an inference the passage clearly supports. Sentence 4 is a caution about causation — it limits the inference, which is exactly why "diet prevents Alzheimer\'s" (too strong) would be wrong.',
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},
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{
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question:
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"What can be inferred about the scientist's attitude toward the technology?",
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passage: [
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"Dr. Reyes has spent the last decade studying CRISPR applications in agriculture.",
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"In her 2023 report, she called the technology 'one of the most significant breakthroughs in food science in the last fifty years.'",
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"She was careful, however, to note that large-scale deployment would require extensive safety testing over multiple growing seasons.",
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"She also advocated for transparent public communication about how modified crops differ from conventional ones.",
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"Despite her caution, her lab has continued to accelerate its own research timeline.",
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],
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evidenceIndex: 1,
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explanation:
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"Sentence 2 most directly reveals the scientist's attitude: she views CRISPR as one of the most significant breakthroughs in fifty years — clearly positive. The word \"careful\" in sentence 3 adds nuance but doesn't change her fundamental enthusiasm. An inference about her attitude should be grounded in her own words in sentence 2.",
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"Sentence 4 is the evidence of the unintended consequence — a massive surge in heavier plastic bag purchases. Combined with sentence 5, it implies total plastic use may have increased, the opposite of the ban's stated goal.",
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},
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];
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@ -78,9 +125,11 @@ const EBRWInferencesLesson: React.FC<LessonProps> = ({ onFinish }) => {
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return () => observers.forEach((o) => o.disconnect());
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}, []);
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const scrollToSection = (i: number) => {
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setActiveSection(i);
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sectionsRef.current[i]?.scrollIntoView({ behavior: "smooth" });
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useScrollReveal();
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const scrollToSection = (index: number) => {
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setActiveSection(index);
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sectionsRef.current[index]?.scrollIntoView({ behavior: "smooth" });
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};
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const SectionMarker = ({
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@ -100,7 +149,8 @@ const EBRWInferencesLesson: React.FC<LessonProps> = ({ onFinish }) => {
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className={`flex items-center gap-3 p-3 w-full rounded-lg text-left transition-all ${isActive ? "bg-teal-50" : "hover:bg-slate-50"}`}
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>
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<div
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className={`w-8 h-8 rounded-full flex items-center justify-center shrink-0 ${isActive ? "bg-teal-600 text-white" : isPast ? "bg-teal-400 text-white" : "bg-slate-200 text-slate-500"}`}
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className={`w-8 h-8 rounded-full flex items-center justify-center shrink-0
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${isActive ? "bg-teal-600 text-white" : isPast ? "bg-teal-400 text-white" : "bg-slate-200 text-slate-500"}`}
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>
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{isPast ? (
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<Check className="w-4 h-4" />
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@ -119,192 +169,463 @@ const EBRWInferencesLesson: React.FC<LessonProps> = ({ onFinish }) => {
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return (
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<div className="flex flex-col lg:flex-row min-h-screen">
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<aside className="w-full lg:w-64 lg:fixed lg:top-14 lg:bottom-0 lg:overflow-y-auto p-4 border-r border-slate-200 bg-slate-50 lg:bg-transparent z-0 hidden lg:block">
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<aside className="w-full lg:w-64 lg:fixed lg:top-14 lg:bottom-0 lg:overflow-y-auto p-4 border-r border-slate-200 bg-slate-50 z-0 hidden lg:block">
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<nav className="space-y-2 pt-6">
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<SectionMarker
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index={0}
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title="Concept & Annotation"
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icon={BookOpen}
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/>
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<SectionMarker index={0} title="Valid Inferences" icon={BookOpen} />
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<SectionMarker
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index={1}
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title="Evidence Hunter"
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icon={AlertTriangle}
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title="Inference Patterns"
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icon={Lightbulb}
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/>
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<SectionMarker index={2} title="Practice Quiz" icon={Zap} />
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<SectionMarker index={2} title="Inference Tracker" icon={Target} />
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<SectionMarker index={3} title="Practice Questions" icon={Zap} />
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</nav>
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</aside>
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<div className="flex-1 lg:ml-64 p-6 md:p-12 max-w-4xl mx-auto">
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{/* Section 0: Concept & Annotation */}
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<div className="flex-1 lg:ml-64 md:p-12 max-w-full mx-auto">
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{/* Section 0 — Valid Inferences */}
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<section
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ref={(el) => {
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sectionsRef.current[0] = el;
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}}
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className="min-h-screen flex flex-col justify-center mb-24 pt-20 lg:pt-0"
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>
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<div className="inline-flex items-center gap-2 bg-teal-100 text-teal-700 px-3 py-1 rounded-full text-xs font-bold uppercase tracking-wider mb-4">
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Information & Ideas
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<div className="inline-flex items-center gap-2 bg-teal-100 text-teal-700 px-3 py-1 rounded-full text-xs font-bold uppercase tracking-wider mb-4 w-fit">
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Information & Ideas — Domain 2
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</div>
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<h2 className="text-4xl font-extrabold text-slate-900 mb-2">
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Inferences
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</h2>
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<p className="text-lg text-slate-500 mb-8">
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A valid inference is not stated but is strongly supported. It never
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exceeds what the text supports — and never uses extreme language.
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A valid inference MUST be true based on the passage — not merely
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possible, plausible, or consistent.
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</p>
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{/* Rule grid */}
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<div className="grid grid-cols-1 sm:grid-cols-2 gap-4 mb-8">
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{[
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{
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num: "1",
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title: "Inference = Logical Extension",
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body: "An inference is not stated directly. It's a conclusion that must logically follow from what the text says.",
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},
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{
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num: "2",
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title: "Stay Close to the Text",
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body: "The SAT rewards inferences that are a small, necessary step from the evidence. Avoid dramatic leaps.",
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},
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{
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num: "3",
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title: "Supported, Not Proven",
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body: "A valid inference is supported by the text but not explicitly stated. It must be consistent with ALL of the passage, not just one line.",
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},
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{
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num: "4",
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title: "Eliminate Extreme Language",
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body: "Inferences with 'always,' 'never,' 'all,' 'none,' 'impossible' are almost always wrong — the passage rarely proves absolutes.",
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},
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].map((rule) => (
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<div
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key={rule.num}
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className="rounded-2xl border border-teal-200 bg-teal-50 p-5"
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>
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<div className="flex items-center gap-2 mb-2">
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<span className="w-7 h-7 rounded-full bg-teal-600 text-white flex items-center justify-center text-xs font-bold shrink-0">
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{rule.num}
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</span>
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<p className="text-sm font-bold text-teal-900">
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{rule.title}
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</p>
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</div>
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<p className="text-sm text-slate-700 leading-relaxed">
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{rule.body}
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</p>
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{/* Core Concept — now with RevealCardGrid */}
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<div className="scroll-reveal stagger-1 bg-teal-50 border border-teal-200 rounded-2xl p-6 mb-8">
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<h3 className="text-lg font-bold text-teal-900 mb-2">
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The Core Concept — What Makes an Inference Valid?
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</h3>
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<p className="text-sm text-slate-700 mb-4">
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A valid inference is a statement that MUST be true if the evidence
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is true. It cannot merely be likely, plausible, or consistent. The
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SAT rewards only conclusions that necessarily follow from what is
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stated.
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</p>
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<RevealCardGrid
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cards={INFERENCE_TYPES}
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columns={3}
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accentColor="teal"
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/>
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</div>
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{/* 3-Step Text Completion Process */}
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<div className="scroll-reveal stagger-2 rounded-2xl p-6 mb-8 bg-white border border-slate-200 space-y-4">
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<h3 className="text-lg font-bold text-slate-900">
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The 3-Step Text Completion Process
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</h3>
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<p className="text-sm text-slate-600">
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Text completion questions present a short passage followed by a
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blank at the end, asking "Which choice most logically completes
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the text?" The correct answer NECESSARILY follows from the stated
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evidence — not merely the most interesting or plausible
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continuation.
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</p>
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<div className="bg-teal-50 border border-teal-200 rounded-xl p-4">
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<p className="font-bold text-teal-800 text-sm mb-2">
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Universal Method for All Inference Questions
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</p>
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<div className="space-y-2">
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{[
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[
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"1",
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"IDENTIFY the key claim or evidence (usually in the 1–2 sentences before the blank). Write it in 3–6 words on scratch paper.",
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],
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[
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"2",
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'WORK OUT the implication: "If this is true, what MUST also be true?" Do this BEFORE looking at answers. Even one word helps.',
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],
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[
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"3",
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"MATCH the answer: look for the option that says the same thing as your implication, possibly using different words, negation, or synonyms.",
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],
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].map(([n, text]) => (
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<div key={n} className="flex gap-2">
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<span className="w-5 h-5 rounded-full bg-teal-600 text-white flex items-center justify-center text-xs font-bold shrink-0">
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{n}
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</span>
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<p className="text-xs text-slate-700">{text}</p>
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</div>
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))}
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</div>
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))}
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</div>
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{/* Static annotation visual */}
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<h3 className="text-lg font-bold text-slate-800 mb-3">
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Valid vs. Invalid Inference — Annotated
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</h3>
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<div className="space-y-3 mb-8">
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<div className="rounded-xl bg-teal-100 border border-teal-200 p-4">
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<p className="text-xs font-bold text-teal-700 uppercase tracking-wider mb-1">
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Stated in the text
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</p>
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<p className="text-sm text-slate-800">
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"The researcher found that sleep-deprived students scored 15%
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lower on memory tests."
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</p>
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</div>
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<div className="rounded-xl bg-green-100 border border-green-200 p-4">
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<p className="text-xs font-bold text-green-700 uppercase tracking-wider mb-1">
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Valid inference
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<div className="bg-amber-50 border border-amber-200 rounded-xl p-4">
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<p className="font-bold text-amber-800 text-sm mb-1">
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WHY THIS MATTERS
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</p>
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<p className="text-sm text-slate-800">
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Sleep deprivation negatively affects memory performance.
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</p>
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</div>
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<div className="rounded-xl bg-orange-100 border border-orange-200 p-4">
|
||||
<p className="text-xs font-bold text-orange-700 uppercase tracking-wider mb-1">
|
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Invalid inference
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</p>
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<p className="text-sm text-slate-800">
|
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"Sleep is the most important factor in academic performance." —
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Too broad, not proven by one study.
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<p className="text-xs text-slate-700">
|
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If you look at answer choices before working out the
|
||||
implication, you are vulnerable to speculation traps — answers
|
||||
that sound plausible because they extend the idea in a
|
||||
reasonable direction, but go further than the evidence requires.
|
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</p>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
{/* Trap callout */}
|
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<div className="rounded-2xl bg-red-50 border border-red-200 p-5 mb-8">
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||||
<p className="text-sm font-bold text-red-800 mb-2">
|
||||
Inference Trap
|
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</p>
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||||
<p className="text-sm text-slate-700 leading-relaxed">
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A choice that is plausible in real life but goes BEYOND what the
|
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passage can actually support. Always ask: "Can I prove this using
|
||||
only what the passage says?"
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</p>
|
||||
</div>
|
||||
|
||||
{/* Golden rule */}
|
||||
<div className="rounded-2xl bg-teal-900 p-6 mb-8">
|
||||
<p className="text-xs font-bold text-teal-300 uppercase tracking-wider mb-2">
|
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Golden Rule
|
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</p>
|
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<p className="text-white font-semibold leading-relaxed">
|
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Inferences are the smallest logical step the text allows. If the
|
||||
inference requires outside knowledge or an additional assumption,
|
||||
it's wrong.
|
||||
</p>
|
||||
</div>
|
||||
|
||||
<button
|
||||
onClick={() => scrollToSection(1)}
|
||||
className="mt-4 group flex items-center text-teal-600 font-bold hover:text-teal-800 transition-colors"
|
||||
>
|
||||
Next: Evidence Hunter{" "}
|
||||
<ArrowDown className="ml-2 w-5 h-5 group-hover:translate-y-1 transition-transform" />
|
||||
</button>
|
||||
</section>
|
||||
|
||||
{/* Section 1: Evidence Hunter */}
|
||||
{/* Section 1 — Inference Patterns */}
|
||||
<section
|
||||
ref={(el) => {
|
||||
sectionsRef.current[1] = el;
|
||||
}}
|
||||
className="min-h-screen flex flex-col justify-center mb-24"
|
||||
>
|
||||
<div className="inline-flex items-center gap-2 bg-teal-100 text-teal-700 px-3 py-1 rounded-full text-xs font-bold uppercase tracking-wider mb-4">
|
||||
Interactive Practice
|
||||
</div>
|
||||
<h2 className="text-4xl font-extrabold text-slate-900 mb-2">
|
||||
Evidence Hunter
|
||||
Inference Patterns
|
||||
</h2>
|
||||
<p className="text-lg text-slate-500 mb-8">
|
||||
For each passage, click the sentence that most strongly supports the
|
||||
inference asked. Think: which sentence does the most work for this
|
||||
conclusion?
|
||||
The four core patterns, speculation traps, double negatives, and
|
||||
multi-step chains.
|
||||
</p>
|
||||
|
||||
<EvidenceHunterWidget
|
||||
exercises={EVIDENCE_EXERCISES}
|
||||
accentColor="teal"
|
||||
/>
|
||||
{/* 6A — 4 Core Patterns */}
|
||||
<div className="scroll-reveal stagger-1 rounded-2xl p-6 mb-8 bg-teal-50 border border-teal-200 space-y-4">
|
||||
<h3 className="text-lg font-bold text-teal-900">
|
||||
The Four Core Valid Inference Patterns
|
||||
</h3>
|
||||
<div className="space-y-4">
|
||||
{[
|
||||
{
|
||||
num: 1,
|
||||
pattern: "Negation / Contrapositive",
|
||||
rule: "If only X has property Y, then everything that is not-X must lack property Y. This works in both directions.",
|
||||
examples: [
|
||||
"If 14% of earthquakes are supershear events → 86% are NOT supershear events.",
|
||||
"If a phenomenon occurs ONLY during slow-wave sleep → it does NOT occur during REM sleep.",
|
||||
"If researchers focused mostly on land → most data comes from land, therefore they may have undercounted non-land events.",
|
||||
],
|
||||
},
|
||||
{
|
||||
num: 2,
|
||||
pattern: "Relative Comparison",
|
||||
rule: "If X is more than Y, you can restate this as Y is less than X. If X is the most, you can infer that all others are less than X.",
|
||||
examples: [
|
||||
"If muscular contractions when lowering weights are MOST effective → contractions when raising weights are LESS effective.",
|
||||
"If big brown bats emit the most cries → all other species emit fewer cries.",
|
||||
"Restatement direction: if the claim is A > B, a valid answer might say B < A.",
|
||||
],
|
||||
},
|
||||
{
|
||||
num: 3,
|
||||
pattern: "Logical Elimination",
|
||||
rule: "When possibilities are listed and most are ruled out, the remaining possibility is the valid inference.",
|
||||
examples: [
|
||||
"Researchers studied supershear earthquakes mostly on land → they did not study underwater earthquakes → many supershear earthquakes likely occur underwater.",
|
||||
"Two theories for Mars's crust: (a) magma ocean or (b) different origin. If feldspar (associated with b) is found → theory (a) alone does not explain the crust.",
|
||||
],
|
||||
},
|
||||
{
|
||||
num: 4,
|
||||
pattern: "Causal / Consequential Extension",
|
||||
rule: "If X causes Y, then applying X to a new situation should produce Y. Removing X should reduce Y.",
|
||||
examples: [
|
||||
"If replay during slow-wave sleep consolidates memory → dancers who sleep several hours right after learning a routine should remember it better two weeks later.",
|
||||
"If hyperglycemia (high blood sugar) reduces exercise response → a drug that lowers blood sugar should improve exercise response.",
|
||||
"Apply the mechanism to a new group, new time period, or new scenario — but STAY within the same causal framework.",
|
||||
],
|
||||
},
|
||||
].map((p) => (
|
||||
<div
|
||||
key={p.num}
|
||||
className="card-tilt bg-white border border-slate-200 rounded-xl p-5"
|
||||
>
|
||||
<div className="flex items-center gap-2 mb-2">
|
||||
<span className="w-6 h-6 rounded-full bg-teal-600 text-white flex items-center justify-center text-xs font-bold shrink-0">
|
||||
{p.num}
|
||||
</span>
|
||||
<p className="font-bold text-teal-900">{p.pattern}</p>
|
||||
</div>
|
||||
<p className="text-sm text-slate-700 mb-2">{p.rule}</p>
|
||||
<ul className="space-y-1">
|
||||
{p.examples.map((ex, i) => (
|
||||
<li
|
||||
key={i}
|
||||
className="text-xs text-slate-500 bg-slate-50 rounded px-2 py-1 italic"
|
||||
>
|
||||
• {ex}
|
||||
</li>
|
||||
))}
|
||||
</ul>
|
||||
</div>
|
||||
))}
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<button
|
||||
onClick={() => scrollToSection(2)}
|
||||
className="mt-12 group flex items-center text-teal-600 font-bold hover:text-teal-800 transition-colors"
|
||||
>
|
||||
Next: Practice Quiz{" "}
|
||||
<ArrowDown className="ml-2 w-5 h-5 group-hover:translate-y-1 transition-transform" />
|
||||
</button>
|
||||
{/* 6B — Speculation Traps */}
|
||||
<div className="scroll-reveal stagger-2 rounded-2xl p-6 mb-8 bg-white border border-slate-200 space-y-4">
|
||||
<h3 className="text-lg font-bold text-slate-900">
|
||||
Speculation Traps
|
||||
</h3>
|
||||
<p className="text-sm text-slate-600">
|
||||
Speculation traps are the most common wrong answer type in text
|
||||
completions. They go one plausible step too far beyond what the
|
||||
evidence necessarily implies.
|
||||
</p>
|
||||
<div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
|
||||
<div className="card-tilt bg-red-50 border border-red-200 rounded-xl p-4">
|
||||
<p className="font-bold text-red-800 text-sm mb-2">
|
||||
How to Identify a Speculation Trap
|
||||
</p>
|
||||
<ul className="text-xs text-slate-600 space-y-1">
|
||||
<li>• The answer could be true but doesn't have to be.</li>
|
||||
<li>
|
||||
• The answer introduces a new assumption not grounded in the
|
||||
passage.
|
||||
</li>
|
||||
<li>
|
||||
• The answer requires you to imagine a scenario the passage
|
||||
doesn't describe.
|
||||
</li>
|
||||
<li>
|
||||
• The answer goes from "this happens" to "this is the
|
||||
best/only/most effective way."
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div className="card-tilt bg-teal-50 border border-teal-200 rounded-xl p-4">
|
||||
<p className="font-bold text-teal-800 text-sm mb-2">
|
||||
Worked Example
|
||||
</p>
|
||||
<p className="text-xs text-slate-600 mb-2 italic">
|
||||
Evidence: Sea turtle conservation focuses on protecting
|
||||
hatchlings after they emerge.
|
||||
</p>
|
||||
<ul className="text-xs space-y-1">
|
||||
<li className="text-green-700">
|
||||
✓ VALID: Conservation focuses less on hatchlings before they
|
||||
emerge.
|
||||
</li>
|
||||
<li className="text-red-600">
|
||||
✗ TRAP: Protecting hatchlings after emergence is the only
|
||||
effective method.
|
||||
</li>
|
||||
<li className="text-red-600">
|
||||
✗ TRAP: Pre-emergence protection is more effective.
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div className="bg-amber-50 border border-amber-200 rounded-xl p-4">
|
||||
<p className="font-bold text-amber-800 text-sm mb-1">RULE</p>
|
||||
<p className="text-xs text-slate-700">
|
||||
The word "only" in an answer choice is almost always a sign of
|
||||
over-speculation. Very few things on the SAT are literally "the
|
||||
only way." Be very suspicious of absolute claims in answer
|
||||
choices.
|
||||
</p>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
{/* 6C — Double Negatives & Second Meanings */}
|
||||
<div className="scroll-reveal stagger-3 rounded-2xl p-6 mb-8 bg-white border border-slate-200 space-y-4">
|
||||
<h3 className="text-lg font-bold text-slate-900">
|
||||
Double Negatives and Second Meanings in Answer Choices
|
||||
</h3>
|
||||
<p className="text-sm text-slate-600">
|
||||
Inference answer choices frequently use double negatives (which
|
||||
create positive meanings) or words in their second meanings. These
|
||||
are designed to make correct answers look wrong to careless
|
||||
readers.
|
||||
</p>
|
||||
<div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
|
||||
<div className="card-tilt bg-teal-50 border border-teal-200 rounded-xl p-4">
|
||||
<p className="font-bold text-teal-800 text-sm mb-2">
|
||||
Double Negative Translations
|
||||
</p>
|
||||
<ul className="text-xs text-slate-600 space-y-1">
|
||||
<li>• "Not impossible" = possible</li>
|
||||
<li>• "Not unimportant" = important</li>
|
||||
<li>• "Not unlike" = similar</li>
|
||||
<li>• "Less harmful" = milder, but still harmful</li>
|
||||
<li>• Decode completely before evaluating the answer.</li>
|
||||
<li className="italic text-teal-700">
|
||||
Strategy: Replace "not un-X" with "X" and "not im-X" with
|
||||
"X".
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div className="card-tilt bg-teal-50 border border-teal-200 rounded-xl p-4">
|
||||
<p className="font-bold text-teal-800 text-sm mb-2">
|
||||
Second Meanings to Know
|
||||
</p>
|
||||
<ul className="text-xs text-slate-600 space-y-1">
|
||||
<li>
|
||||
• "Qualify" = limit the scope of a claim (not: meet
|
||||
requirements)
|
||||
</li>
|
||||
<li>• "Sound" = valid, reliable (not: audio)</li>
|
||||
<li>• "Check" = restrain, control (not: verify)</li>
|
||||
<li>
|
||||
• "Economy" = thrift, efficiency (not: the financial system)
|
||||
</li>
|
||||
<li>• "Reserve" = hold off on (not: book in advance)</li>
|
||||
<li className="italic text-teal-700">
|
||||
When a simple common word appears as an answer, suspect a
|
||||
second meaning.
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
{/* 6D — Multi-Step Logical Chains */}
|
||||
<div className="scroll-reveal stagger-4 rounded-2xl p-6 mb-8 bg-white border border-slate-200 space-y-4">
|
||||
<h3 className="text-lg font-bold text-slate-900">
|
||||
Multi-Step Logical Chains
|
||||
</h3>
|
||||
<p className="text-sm text-slate-600">
|
||||
Some text completion questions require you to follow 2–3 logical
|
||||
steps before arriving at the conclusion. Students most often lose
|
||||
points here by stopping one step too early or introducing an extra
|
||||
assumption.
|
||||
</p>
|
||||
<div className="bg-slate-50 border border-slate-200 rounded-xl p-4">
|
||||
<p className="font-bold text-slate-800 text-sm mb-2">
|
||||
Multi-Step Chain: Worked Example (Mars Crust)
|
||||
</p>
|
||||
<div className="space-y-1 text-xs text-slate-700">
|
||||
<p>
|
||||
<span className="font-bold">Step 1:</span> Two theories exist
|
||||
for the first Martian crust: (a) all-encompassing magma ocean,
|
||||
(b) different origin with high silica.
|
||||
</p>
|
||||
<p>
|
||||
<span className="font-bold">Step 2:</span> Researchers find
|
||||
feldspar (associated with high-silica lava flows) in 9
|
||||
locations on Mars.
|
||||
</p>
|
||||
<p>
|
||||
<span className="font-bold">Step 3:</span> Feldspar is
|
||||
evidence for Theory (b) — different origin with high silica.
|
||||
</p>
|
||||
<p>
|
||||
<span className="font-bold">Step 4:</span> If Theory (b)
|
||||
accounts for some locations, Theory (a) (magma ocean) could
|
||||
not have been ALL-ENCOMPASSING.
|
||||
</p>
|
||||
<p className="text-green-700 font-bold mt-2">
|
||||
Valid Conclusion: The magma ocean was not all-encompassing.
|
||||
</p>
|
||||
<p className="text-red-600 italic">
|
||||
Speculation Trap: "Portions of Mars' surface were never
|
||||
covered by a crust." (no evidence for this)
|
||||
</p>
|
||||
</div>
|
||||
</div>
|
||||
<p className="font-semibold text-sm text-slate-800">
|
||||
Common errors in multi-step chains:
|
||||
</p>
|
||||
<RevealCardGrid
|
||||
cards={CHAIN_ERRORS}
|
||||
columns={2}
|
||||
accentColor="teal"
|
||||
/>
|
||||
</div>
|
||||
|
||||
{/* 6E — Scratch Paper */}
|
||||
<div className="scroll-reveal stagger-5 rounded-2xl p-6 mb-8 bg-teal-50 border border-teal-200 space-y-4">
|
||||
<h3 className="text-lg font-bold text-teal-900">
|
||||
Using Scratch Paper for Inference Questions
|
||||
</h3>
|
||||
<p className="text-sm text-slate-700">
|
||||
For text completions, scratch paper is not optional — it is
|
||||
essential. Writing down even a brief summary of the key claim and
|
||||
your predicted answer protects you from being seduced by
|
||||
plausible-sounding wrong answers.
|
||||
</p>
|
||||
<div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
|
||||
<div className="card-tilt bg-white border border-teal-100 rounded-xl p-4">
|
||||
<p className="font-bold text-teal-800 text-sm mb-2">
|
||||
What to Write
|
||||
</p>
|
||||
<ul className="text-xs text-slate-600 space-y-1">
|
||||
<li>• 3–6 word summary of the key claim.</li>
|
||||
<li>
|
||||
• Arrow indicating direction: "X → Y" or "less X = more Y".
|
||||
</li>
|
||||
<li>
|
||||
• Your predicted answer in 3–5 words before looking at
|
||||
choices.
|
||||
</li>
|
||||
<li>
|
||||
• For multi-step chains: number each step (1) → (2) → (3).
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div className="card-tilt bg-white border border-teal-100 rounded-xl p-4">
|
||||
<p className="font-bold text-teal-800 text-sm mb-2">
|
||||
What This Prevents
|
||||
</p>
|
||||
<ul className="text-xs text-slate-600 space-y-1">
|
||||
<li>
|
||||
• Choosing a speculative answer because it sounded good.
|
||||
</li>
|
||||
<li>
|
||||
• Forgetting the specific constraint after reading 4 answer
|
||||
choices.
|
||||
</li>
|
||||
<li>• Losing track of the logical chain halfway through.</li>
|
||||
<li>
|
||||
• Selecting half-valid answers that address only part of the
|
||||
claim.
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div className="scroll-reveal-scale golden-rule-glow bg-teal-900 text-white rounded-2xl p-5 mb-8">
|
||||
<p className="font-bold mb-1">Golden Rule</p>
|
||||
<p className="text-sm text-teal-100">
|
||||
Test every answer with: "Does the passage GUARANTEE this is true?"
|
||||
If you can imagine a scenario where the passage is correct but
|
||||
this answer is still false, eliminate it. Only the answer that
|
||||
MUST be true is correct. "Only," "best," and "most effective" in
|
||||
answer choices = almost always over-speculation.
|
||||
</p>
|
||||
</div>
|
||||
</section>
|
||||
|
||||
{/* Section 2: Practice Quiz */}
|
||||
{/* Section 2 — Inference Tracker widget */}
|
||||
<section
|
||||
ref={(el) => {
|
||||
sectionsRef.current[2] = el;
|
||||
}}
|
||||
className="min-h-screen flex flex-col justify-center mb-24"
|
||||
>
|
||||
<h2 className="text-4xl font-extrabold text-slate-900 mb-2">
|
||||
Inference Tracker
|
||||
</h2>
|
||||
<p className="text-lg text-slate-500 mb-8">
|
||||
Click the sentence that provides the strongest basis for the
|
||||
inference. Which sentence GUARANTEES the conclusion?
|
||||
</p>
|
||||
<EvidenceHunterWidget
|
||||
exercises={EVIDENCE_EXERCISES}
|
||||
accentColor="teal"
|
||||
/>
|
||||
</section>
|
||||
|
||||
{/* Section 3 — Practice */}
|
||||
<section
|
||||
ref={(el) => {
|
||||
sectionsRef.current[3] = el;
|
||||
}}
|
||||
className="min-h-screen flex flex-col justify-center mb-24"
|
||||
>
|
||||
<h2 className="text-4xl font-extrabold text-slate-900 mb-6">
|
||||
Practice Quiz
|
||||
Practice Questions
|
||||
</h2>
|
||||
{INFERENCES_EASY.slice(0, 2).map((q) => (
|
||||
<PracticeFromDataset key={q.id} question={q} color="teal" />
|
||||
@ -317,7 +638,7 @@ const EBRWInferencesLesson: React.FC<LessonProps> = ({ onFinish }) => {
|
||||
onClick={onFinish}
|
||||
className="px-6 py-3 bg-teal-900 text-white font-bold rounded-full hover:bg-teal-700 transition-colors"
|
||||
>
|
||||
Finish Lesson
|
||||
Finish Lesson ✓
|
||||
</button>
|
||||
</div>
|
||||
</section>
|
||||
|
||||
Reference in New Issue
Block a user