Precalculus & Calculus on-ramps
The course the house teaches from for this shelf: videos, practice, and quizzes that check you as you go.
Open it free →
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📚 The Library → 🎒 High School → 12th Grade
📚 12TH GRADE
High School · Precalculus, the college essay, Economics. Tap a subject — the shelf opens. Every book and lesson here is free.
🔢 Math
Precalculus into Calculus: trigonometry in full, limits' first idea, then derivatives and integrals. Statistics and probability alongside.
CK-12 — open the Math FlexBooks
The free textbook for this shelf: read the chapter, try the practice, check yourself.
Open it free →From the House — Math
The crew is stocking this shelf with the house's own lessons. Check back — slots fill in as lessons land. Everything linked above is free right now.
✏️ Reading & Writing
The personal statement — the college essay as a genre. SAT/ACT reading and writing craft.
Reading & Language Arts — your grade level
The course the house teaches from for this shelf: videos, practice, and quizzes that check you as you go.
Open it free →CK-12 — open the English FlexBooks
The free textbook for this shelf: read the chapter, try the practice, check yourself.
Open it free →From the House — Reading & Writing
The crew is stocking this shelf with the house's own lessons. Check back — slots fill in as lessons land. Everything linked above is free right now.
🔬 Science
AP depth and electives: earth and space science, anatomy and physiology, environmental science.
Science — your level
The course the house teaches from for this shelf: videos, practice, and quizzes that check you as you go.
Open it free →CK-12 — open the Science FlexBooks
The free textbook for this shelf: read the chapter, try the practice, check yourself.
Open it free →From the House — Science
The crew is stocking this shelf with the house's own lessons. Check back — slots fill in as lessons land. Everything linked above is free right now.
🌎 Social Studies & History
Economics: micro (supply and demand in depth, market structures) and macro (GDP, inflation, fiscal and monetary policy). Geography in depth — maps as arguments.
History, Civics & Humanities
The course the house teaches from for this shelf: videos, practice, and quizzes that check you as you go.
Open it free →CK-12 — open the Social Studies FlexBooks
The free textbook for this shelf: read the chapter, try the practice, check yourself.
Open it free →From the House — Social Studies & History
The crew is stocking this shelf with the house's own lessons. Check back — slots fill in as lessons land. Everything linked above is free right now.