feat(lessons): add lessons from client db
This commit is contained in:
shafin-r
329
src/pages/student/lessons/EBRWInferencesLesson.tsx
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329
src/pages/student/lessons/EBRWInferencesLesson.tsx
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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 { 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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interface LessonProps {
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onFinish?: () => void;
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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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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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],
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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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},
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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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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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],
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evidenceIndex: 2,
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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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},
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];
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const EBRWInferencesLesson: React.FC<LessonProps> = ({ onFinish }) => {
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const [activeSection, setActiveSection] = useState(0);
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const sectionsRef = useRef<(HTMLElement | null)[]>([]);
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useEffect(() => {
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const observers: IntersectionObserver[] = [];
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sectionsRef.current.forEach((el, idx) => {
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if (!el) return;
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const obs = new IntersectionObserver(
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([entry]) => {
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if (entry.isIntersecting) setActiveSection(idx);
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},
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{ threshold: 0.3 },
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);
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obs.observe(el);
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observers.push(obs);
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});
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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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};
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const SectionMarker = ({
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index,
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title,
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icon: Icon,
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}: {
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index: number;
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title: string;
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icon: React.ElementType;
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}) => {
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const isActive = activeSection === index;
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const isPast = activeSection > index;
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return (
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<button
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onClick={() => scrollToSection(index)}
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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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>
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{isPast ? (
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<Check className="w-4 h-4" />
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) : (
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<Icon className="w-4 h-4" />
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)}
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</div>
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<p
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className={`text-sm font-bold ${isActive ? "text-teal-900" : "text-slate-600"}`}
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>
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{title}
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</p>
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</button>
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);
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};
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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 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
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index={1}
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title="Evidence Hunter"
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icon={AlertTriangle}
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/>
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<SectionMarker index={2} title="Practice Quiz" 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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<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>
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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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</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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</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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</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">
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<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>
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</div>
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</div>
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{/* 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">
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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
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only what the passage says?"
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</p>
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</div>
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{/* Golden rule */}
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<div className="rounded-2xl bg-teal-900 p-6 mb-8">
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<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
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inference requires outside knowledge or an additional assumption,
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it's wrong.
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</p>
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</div>
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<button
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onClick={() => scrollToSection(1)}
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className="mt-4 group flex items-center text-teal-600 font-bold hover:text-teal-800 transition-colors"
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>
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Next: Evidence Hunter{" "}
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<ArrowDown className="ml-2 w-5 h-5 group-hover:translate-y-1 transition-transform" />
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</button>
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</section>
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{/* Section 1: Evidence Hunter */}
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<section
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ref={(el) => {
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sectionsRef.current[1] = el;
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}}
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className="min-h-screen flex flex-col justify-center mb-24"
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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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Interactive Practice
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</div>
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<h2 className="text-4xl font-extrabold text-slate-900 mb-2">
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Evidence Hunter
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</h2>
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<p className="text-lg text-slate-500 mb-8">
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For each passage, click the sentence that most strongly supports the
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inference asked. Think: which sentence does the most work for this
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conclusion?
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</p>
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<EvidenceHunterWidget
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exercises={EVIDENCE_EXERCISES}
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accentColor="teal"
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/>
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<button
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onClick={() => scrollToSection(2)}
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className="mt-12 group flex items-center text-teal-600 font-bold hover:text-teal-800 transition-colors"
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>
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Next: Practice Quiz{" "}
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<ArrowDown className="ml-2 w-5 h-5 group-hover:translate-y-1 transition-transform" />
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</button>
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</section>
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{/* Section 2: Practice Quiz */}
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<section
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ref={(el) => {
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sectionsRef.current[2] = el;
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}}
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className="min-h-screen flex flex-col justify-center mb-24"
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>
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<h2 className="text-4xl font-extrabold text-slate-900 mb-6">
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Practice Quiz
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</h2>
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{INFERENCES_EASY.slice(0, 2).map((q) => (
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<PracticeFromDataset key={q.id} question={q} color="teal" />
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))}
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{INFERENCES_MEDIUM.slice(0, 1).map((q) => (
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<PracticeFromDataset key={q.id} question={q} color="teal" />
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))}
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<div className="mt-8 text-center">
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<button
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onClick={onFinish}
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className="px-6 py-3 bg-teal-900 text-white font-bold rounded-full hover:bg-teal-700 transition-colors"
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>
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Finish Lesson
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</button>
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</div>
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</section>
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</div>
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</div>
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);
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};
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export default EBRWInferencesLesson;
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Reference in New Issue
Block a user