AP Calculus AB
Limits, derivatives and integrals, the first-semester college calculus course.
AP Calculus AB exam · usually grades 11-12
Studied with Calculus I · Licence: CC BY-NC-SA 4.0
Start studying freeHome / High school courses
Free study help for high school and AP
Study for class and for the AP exam. Each pack is built from an openly licensed textbook, so every answer cites the passage it came from, with flashcards, quizzes and a study plan.
High school courses (48 courses, 39 ready)
AP courses first, then the core high school courses. Ready packs open right away; the rest are marked Coming soon.
AP courses (28)
AP Calculus BC
Everything in AB plus series, parametric and polar functions: two semesters of college calculus.
AP Calculus BC exam · usually grades 11-12
Studied with Calculus I, Calculus II · Licence: CC BY-NC-SA 4.0
Start studying freeAP Precalculus
Functions, polynomial, rational, exponential, logarithmic, trigonometric and parametric models.
AP Precalculus exam · usually grades 10-12
Studied with Precalculus · Licence: CC BY-NC-SA 4.0
Start studying freeAP Statistics
Exploring data, sampling, probability and inference, written for high school students.
AP Statistics exam · usually grades 10-12
Studied with AP Statistics · Licence: CC BY 4.0
Start studying freeAP Biology
Chemistry of life, cells, genetics, evolution and ecology, built around the AP Biology big ideas.
AP Biology exam · usually grades 10-12
Studied with AP Biology · Licence: CC BY-NC-SA 4.0
Start studying freeAP Chemistry
Atoms, bonding, reactions, thermodynamics, kinetics, equilibrium and acids and bases.
AP Chemistry exam · usually grades 11-12
Studied with General Chemistry I, General Chemistry II · Licence: CC BY-NC-SA 4.0
Start studying freeAP Physics 1: Algebra-Based
Kinematics, forces, energy, momentum, rotation, waves and circuits without calculus.
AP Physics 1 exam · usually grades 10-12
Studied with College Physics for AP Courses · Licence: CC BY-NC-SA 4.0
Start studying freeAP Physics 2: Algebra-Based
Fluids, thermodynamics, electric force and fields, circuits, magnetism, optics and modern physics.
AP Physics 2 exam · usually grades 11-12
Studied with College Physics for AP Courses · Licence: CC BY-NC-SA 4.0
Start studying freeAP Physics C: Mechanics
Calculus-based mechanics: motion, Newton's laws, work and energy, rotation, oscillations and gravitation.
AP Physics C: Mechanics exam · usually grades 11-12
Studied with University Physics I (calculus-based) · Licence: CC BY-NC-SA 4.0
Start studying freeAP Physics C: Electricity and Magnetism
Calculus-based electric fields, potential, capacitors, circuits, magnetic fields and induction.
AP Physics C: Electricity and Magnetism exam · usually grades 11-12
Studied with University Physics II: Electricity and Magnetism · Licence: CC BY-NC-SA 4.0
Start studying freeAP Environmental Science
Ecosystems, populations, earth systems, pollution, energy, land and water use, and global change.
AP Environmental Science exam · usually grades 10-12
Studied with Environmental Science · Licence: CC BY-NC 4.0
Start studying freeAP United States History
Colonial America to the present: the nine AP periods with documents, causes and change over time.
AP United States History exam · usually grades 11
Studied with US History I (to 1877), US History II (since 1865) · Licence: CC BY-NC-SA 4.0
Start studying freeAP World History: Modern
Global connections, empires, trade, revolutions and conflict from 1200 to the present.
AP World History: Modern exam · usually grades 10-12
Studied with World History I (to 1500), World History II (from 1400) · Licence: CC BY-NC-SA 4.0
Start studying freeAP European History
Renaissance to the present: politics, economies, ideas and society in Europe.
AP European History exam · usually grades 10-12
AP United States Government and Politics
Constitutional foundations, institutions, civil liberties, political ideas and participation.
AP U.S. Government and Politics exam · usually grades 11-12
Studied with American Government · Licence: CC BY-NC-SA 4.0
Start studying freeAP Comparative Government and Politics
Six countries compared: political systems, institutions, citizens and policy.
AP Comparative Government and Politics exam · usually grades 11-12
Studied with Comparative Government and Politics · Licence: CC BY-NC 4.0
Start studying freeAP Psychology
Biological bases, cognition, development, learning, social psychology, mental health and research methods.
AP Psychology exam · usually grades 10-12
Studied with Introduction to Psychology · Licence: CC BY-NC-SA 4.0
Start studying freeAP Macroeconomics
Output, unemployment, inflation, money, fiscal and monetary policy and international trade.
AP Macroeconomics exam · usually grades 11-12
Studied with Principles of Macroeconomics · Licence: CC BY-NC-SA 4.0
Start studying freeAP Microeconomics
Supply and demand, market structures, factor markets and market failure.
AP Microeconomics exam · usually grades 11-12
Studied with Principles of Microeconomics · Licence: CC BY-NC-SA 4.0
Start studying freeAP English Language and Composition
Rhetorical analysis, argument and synthesis: reading and writing nonfiction.
AP English Language and Composition exam · usually grades 11
Studied with English Composition · Licence: CC BY-NC-SA 4.0
Start studying freeAP English Literature and Composition
Close reading and literary analysis of fiction, poetry and drama.
AP English Literature and Composition exam · usually grades 12
AP Computer Science Principles
Computing systems, data, the internet, algorithms, programming and the impact of computing.
AP Computer Science Principles exam · usually grades 9-12
Studied with Introduction to Computer Science · Licence: CC BY-NC-SA 4.0
Start studying freeAP Computer Science A
Java programming: objects, arrays, recursion, sorting and searching.
AP Computer Science A exam · usually grades 10-12
Studied with Programming in Java and Object-Oriented Design · Licence: CC BY-NC-SA 4.0
Start studying freeAP Human Geography
Population, culture, political organisation, agriculture, cities and industry.
AP Human Geography exam · usually grades 9-12
AP Art History
250 works of art across global cultures from prehistory to the present.
AP Art History exam · usually grades 10-12
AP Music Theory
Pitch, rhythm, harmony, form and aural skills.
AP Music Theory exam · usually grades 10-12
AP Business with Personal Finance
Business basics and personal finance for teens.
AP Business with Personal Finance exam · usually grades 9-12
AP African American Studies
An interdisciplinary survey from African origins to the present.
AP African American Studies exam · usually grades 10-12
Core high school courses (20)
Algebra I
Linear equations and functions, systems, exponents, polynomials and quadratics.
Studied with Algebra I · Licence: CC BY-NC-SA 4.0
Start studying freeGeometry
Angles, proofs, congruence and similarity, circles, area and volume.
Algebra II
Functions, polynomials, exponentials, logarithms, radicals and an introduction to trigonometry.
Studied with Algebra and Trigonometry · Licence: CC BY-NC-SA 4.0
Start studying freePrecalculus
Functions and graphs, trigonometry, vectors and sequences before calculus.
Studied with Precalculus · Licence: CC BY-NC-SA 4.0
Start studying freeStatistics
Data, probability and inference for any high school student.
Studied with AP Statistics · Licence: CC BY 4.0
Start studying freeBiology
Cells, genetics, evolution, ecosystems and the human body.
Studied with Biology for Non-Majors · Licence: CC BY-NC-SA 4.0
Start studying freeChemistry
Matter, atoms, the periodic table, bonding, reactions and solutions.
Studied with Introductory Chemistry · Licence: CC BY 4.0
Start studying freePhysics
Motion, forces, energy, waves, electricity and magnetism, written for high school.
Studied with Physics · Licence: CC BY 4.0
Start studying freeEarth and Space Science
Earth systems, geology, weather and climate, the solar system and the universe.
Environmental Science
Ecosystems, resources, pollution and sustainability.
Studied with Environmental Science · Licence: CC BY-NC 4.0
Start studying freeUS History
From the first Americans to the present, with sources and timelines.
Studied with US History I (to 1877), US History II (since 1865) · Licence: CC BY-NC-SA 4.0
Start studying freeWorld History
Ancient civilizations to the modern world.
Studied with World History I (to 1500), World History II (from 1400) · Licence: CC BY-NC-SA 4.0
Start studying freeCivics and Government
How government works, rights and responsibilities.
Studied with American Government · Licence: CC BY-NC-SA 4.0
Start studying freeEconomics
Choices, markets, money and the economy.
Studied with Principles of Macroeconomics, Principles of Microeconomics · Licence: CC BY-NC-SA 4.0
Start studying freeEnglish: Reading and Writing
Essays, argument, research and grammar for grades 9 to 12.
Studied with English Composition · Licence: CC BY-NC-SA 4.0
Start studying freeIntroduction to Computer Science
How computers work, programming and the internet.
Studied with Introduction to Computer Science · Licence: CC BY-NC-SA 4.0
Start studying freeProgramming in Python
Learn to program with Python from the first line.
Studied with Introduction to Programming (Python) · Licence: CC BY-NC-SA 4.0
Start studying freePsychology
How the mind and behaviour work.
Studied with Introduction to Psychology · Licence: CC BY-NC-SA 4.0
Start studying freeSociology
Society, culture, groups and social change.
Studied with Introduction to Sociology · Licence: CC BY-NC-SA 4.0
Start studying freePersonal Finance
Budgeting, saving, credit, taxes and investing basics.
Studied with Personal Finance · Licence: CC BY-NC-SA 3.0
Start studying freeHow these study packs are made
From open textbooks
Each pack is built from a free, openly licensed textbook. The text is split into passages so every answer in the tutor chat cites its source. Some courses use a college-level open textbook that covers the same topics; follow your teacher's syllabus for what your class needs.
Flashcards and quizzes
Key terms, definitions and worked examples become flashcards and quiz questions. No AI model writes them, so nothing is invented.
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The study aids are generated automatically and marked Draft until a teacher reviews them. Check anything important against your own textbook and teacher.
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