All free courses
Every Atlas Open Academy course, PreK through postdoctoral. Each page has the full lesson text you can read right here, plus a link to the interactive version with quizzes and progress.
➗ Mathematics
- Counting, Shapes & Numbers to 20 EARLY 110
- Elementary Mathematics: Arithmetic & Fractions ELEM 210
- Pre-Algebra & Math Foundations MATH 060
- Algebra I MATH 110
- Geometry MATH 120
- Algebra II & Trigonometry MATH 130
- Precalculus MATH 140
- Calculus I: Limits & Derivatives MATH 151
- Calculus II: Integration & Series MATH 152
- Linear Algebra MATH 220
- Differential Equations MATH 308
- Introduction to Proof & Discrete Math MATH 300
- Real Analysis MATH 410
📊 Data Science & Statistics
- Introduction to Statistics STAT 201
- Probability Theory STAT 310
- Introduction to Data Science DATA 200
- Machine Learning DATA 401
💻 Computer Science
🧬 Biology
- Elementary Science: Life, Earth & Physical ELEM 220
- Life Science SCI 060
- High School Biology BIO 100
- Introductory Biology BIO 101
- Genetics BIO 310
- Human Anatomy & Physiology BIO 220
- Microbiology BIO 350
- Ecology & Conservation BIO 360
- Neuroscience BIO 470
⚗️ Chemistry
- High School Chemistry CHEM 100
- General Chemistry I CHEM 101
- General Chemistry II CHEM 102
- Organic Chemistry CHEM 210
- Biochemistry CHEM 410
🔭 Physics
- High School Physics PHYS 100
- Physics I: Classical Mechanics PHYS 201
- Physics II: Electricity & Magnetism PHYS 202
- Modern Physics PHYS 310
- Quantum Mechanics PHYS 420
🌎 Earth & Environmental Sci.
- My World: Colors, Weather & Seasons EARLY 120
- Earth & Space Science SCI 065
- Physical Geology GEOL 101
- Climate & Environmental Science ENVS 210
🪐 Astronomy
- Introduction to Astronomy ASTR 101
- Cosmology ASTR 320
📖 English & Literature
- Letters, Sounds & First Words EARLY 100
- Reading & Comprehension (Grades 1–5) ELEM 200
- Middle School English & Writing ENG 060
- American Literature ENG 100
- Introduction to Literature ENGL 210
- Shakespeare ENGL 330
✍️ Writing & Composition
- Elementary Writing & Grammar ELEM 240
- College Writing & Rhetoric ENGL 101
- Creative Writing ENGL 250
🏺 History
- Communities, Maps & American Stories ELEM 230
- World History: Ancient Civilizations HIST 060
- AP-Level World History HIST 100
- United States History HIST 105
- Western Civilization HIST 110
- Modern World History HIST 120
🗺️ Geography
- Human Geography GEOG 201
📈 Economics
- Principles of Economics ECON 101
- Microeconomics ECON 201
- Macroeconomics ECON 202
🧠 Psychology
- Introduction to Psychology PSY 101
- Developmental Psychology PSY 230
- Abnormal Psychology PSY 340
👥 Sociology
- Introduction to Sociology SOC 101
⚖️ Political Science
- Civics & Citizenship GOV 060
- U.S. Government & Politics GOV 100
- Introduction to Political Science POLS 101
💭 Philosophy
- Introduction to Philosophy PHIL 101
- Logic & Critical Thinking PHIL 110
- Ethics PHIL 240
🕊️ Religion & World Cultures
- World Religions RELS 101
🎨 Visual & Performing Arts
- Art History Survey ARTH 101
- Drawing & Studio Foundations ART 110
🎵 Music
- Music Theory I MUS 101
- History of Western Music MUS 210
🗣️ World Languages
- Spanish I SPAN 100
- Spanish for Beginners SPAN 201
- French for Beginners FREN 201
- Latin I LATN 201
🏃 Health & Physical Ed.
- Personal Health & Wellness HLTH 101
- Nutrition Science NUTR 210
💼 Business & Management
- Introduction to Business BUS 101
- Financial Accounting ACCT 201
- Principles of Marketing MKTG 210
- Corporate Finance FIN 300
⚙️ Engineering
- Introduction to Engineering & Design ENGR 101
- Engineering Mechanics: Statics ENGR 210
🩺 Medicine & Health Sciences
- Medical Anatomy & Physiology MED 200
- Epidemiology & Public Health PUBH 310
- Dental Assisting (RDA Preparation) DA 100
📜 Law & Legal Studies
- Introduction to Law & Legal Reasoning LAW 101
- Constitutional Law LAW 220
🍎 Education
- Feelings, Friends & Kindergarten Readiness EARLY 130
- Foundations of Education EDUC 101
- Learning Sciences & Instructional Design EDUC 310
🔬 Research & Scholarship
- Research Methods & Design RES 700
- Advanced Quantitative Methods RES 710
- Qualitative Research Methods RES 720
- Academic Writing & Publishing RES 730
- Research Ethics & Integrity RES 740
- Grant Writing & the Postdoctoral Path RES 750