Biology
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Biology for AP Courses OpenStaxOpen & download
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Biology 2e OpenStaxOpen & download
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Chemistry
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Chemistry 2e OpenStaxOpen & download
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Chemistry: Atoms First 2e OpenStaxOpen & download
Physics I and II
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Physics OpenStax · high schoolOpen & download
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College Physics 2e OpenStaxOpen & download
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University Physics Volume 1 OpenStax · mechanicsOpen & download
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University Physics Volume 2 OpenStax · thermodynamics, E&MOpen & download
Computer Science
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Introduction to Computer Science OpenStaxOpen & download
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Open Data Structures Pat Morin · free PDF editionsOpen & download
Programming
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Introduction to Python Programming OpenStaxOpen & download
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Python for Everybody Charles Severance · PDF and EPUBOpen & download
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Think Python, 2nd Edition Green Tea Press · free PDFOpen & download
Physical Science
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Physical Sciences Grade 10 Siyavula · learner PDF and teacher guideOpen & download
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CK-12 Physical Science CK-12 FoundationOpen & download
Algebra I
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Elementary Algebra 2e OpenStaxOpen & download
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Prealgebra 2e OpenStaxOpen & download
Algebra II
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Intermediate Algebra 2e OpenStaxOpen & download
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College Algebra 2e OpenStaxOpen & download
Geometry and Trigonometry
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CK-12 Geometry Concepts CK-12 FoundationOpen & download
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Algebra and Trigonometry 2e OpenStaxOpen & download
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Mathematics Grade 10 Siyavula · geometry, trig and algebra PDFOpen & download
Earth and Space Science
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CK-12 Earth Science for High School CK-12 FoundationOpen & download
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Astronomy 2e OpenStaxOpen & download
Statistics and Probability
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Introductory Statistics 2e OpenStaxOpen & download
Grammar, Reading & Writing
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Writing Guide with Handbook OpenStaxOpen & download
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Writing for Success — Complete PDF BCcampus Open EducationDownload PDF
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Writing for Success University of Minnesota Open Textbook LibraryOpen & download
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College ESL Writers: Applied Grammar and Composing Strategies Open Textbook Library · PDF and WordOpen & download
U.S. & World History
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U.S. History OpenStax · Complete textbookOpen & download
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The American Yawp — Volume I: Before 1877 Stanford University Press · Open textbookDownload PDF
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The American Yawp — Volume II: After 1877 Stanford University Press · Open textbookDownload PDF
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World History, Volume 1: To 1500 OpenStaxOpen & download
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World History, Volume 2: From 1400 OpenStaxOpen & download
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World History: Cultures, States and Societies to 1500 University of North Georgia PressDownload PDF
DNA
Science
Biology
Cells, genetics, evolution and living systemsAfterhours- A&E Study Hub · aligned to OpenStax Biology 2e
Complete Biology PowerPoints
Thirteen full teaching decks with 12 slides per chapter, worked applications, review questions and instructor notes. Files download directly from this public app.
- Introduction to Biology
- Chemistry of Life
- Biological Macromolecules
- Cellular Structure
- Cell Membranes and Transport
- Metabolism, Respiration and Photosynthesis
- Cell Division
- DNA Structure and Replication
- Transcription and Translation
- Gene Expression and Biotechnology
- Trait Inheritance
- Evolution
- Ecology and Modern Biology
Verified teacher and university collections
More complete lecture resources
Open the original source page to view or download its lecture notes, PDFs and PowerPoints.
- K. Collier — AP Biology PowerPoints
- Bond-Jackson — Biology PowerPoint Notes
- Lumen Learning — Biology for Majors PowerPoints
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Science
Chemistry
Matter, atoms, bonding and reactionsLumen Learning
Chemistry Lecture Presentations
Downloadable teacher presentations covering matter, atoms, naming, reactions, gases, energy and bonding.
- Dimensional Analysis
- Density
- Chemistry, Matter and the Elements
- Matter and Measurement
- Atoms, Molecules and Ions
- Oxyanion Nomenclature
- Acid Nomenclature
- Covalent Nomenclature
- Naming Ionic Compounds: Introduction
- Naming Ionic Compounds: Writing Formulas
- Naming Ionic Compounds: Cations and Anions
- Formulas and Equations
- Types of Chemical Reactions
- Gases
- Introduction to Gases and Early Gas Laws
- The Ideal Gas Law
- Dalton’s Law of Partial Pressures
- Kinetic Molecular Theory of Gases
- Real Gases and the van der Waals Equation
- Thermochemistry
- Kinetic and Potential Energy
- Energy, Heat and Work
- State versus Path Functions
- Enthalpy and Internal Energy
- Standard Enthalpy of Formation
- Calorimetry
- Atomic Structure and Periodicity
- Bonding: General Concepts
Verified teacher and university collections
More complete lecture resources
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- Forest Hills High School — AP Chemistry
- Mister Chemistry — Complete AP Slide Library
- McLeod Science — AP Chemistry Units and PowerPoints
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Science
Physics
Motion, forces, energy, waves and electricityMr. Wright · Andrews University
High School Physics PowerPoints
Fourteen downloadable units from kinematics and forces through waves, electricity, nuclear physics and relativity.
- Introduction and 1-D Kinematics
- Forces
- Circular Motion and Torque
- Momentum
- Kepler’s Laws and Gravity
- Energy
- Static Electricity
- Circuits
- Magnetism
- Waves and Sound
- Electromagnetic Rays
- Dual Nature of Light
- Radioactivity, Fission and Fusion
- Special Relativity (optional)
Mr. Wright · Andrews University
College Physics PowerPoints
Twelve downloadable OpenStax-aligned lecture decks covering the full introductory college sequence.
- Introduction and Kinematics
- Forces and Circular Motion
- Work, Energy and Momentum
- Statics, Torque and Rotation
- Fluids
- Heat and Thermodynamics
- Waves and Sound
- Electric Forces and Fields
- Electric Circuits
- Magnetism
- Electromagnetic Waves and Optics
- Special Relativity
Verified teacher and university collections
More complete lecture resources
Open the original source page to view or download its lecture notes, PDFs and PowerPoints.
- Landgreen — Algebra-Based Physics Notes
- Canton High School — Physics Files
- Urbana High School — AP Physics 1 Presentations
- University of Virginia — Physics 1425 Slides
- UC San Diego — Physics 8 Lectures
- East Tennessee State University — Physics II Lectures
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Science
Earth & Space Science
Geology, climate, planets, stars and galaxiesProf. Puwal · Oakland University
Earth Science & Geology PowerPoints
Earth formation, interior, plate tectonics, rocks, volcanoes, earthquakes, oceans, glaciers and climate.
- Cosmology and the Birth of Earth
- Journey to the Center of Earth
- Continental Drift and Seafloor Spreading
- Plate Tectonics
- Minerals
- Magma and Igneous Rocks
- Sedimentary Rocks
- Metamorphism
- Volcanoes
- Earthquakes
- Deep Time
- Energy Resources
- Streams and Floods
- Oceans and Currents
- Groundwater
- Glaciers and Ice Ages
- Global Climate Change
Prof. Puwal · Macomb Community College
Astronomy PowerPoints — ASTR 1030/1040
Eighteen chapters from sky cycles and telescopes through planets, stars, black holes, galaxies and cosmology.
- Cycles of the Sky
- Rise of Astronomy
- Gravity and Motion
- Light and Atoms
- Telescopes
- Earth
- The Moon
- Survey of Solar Systems
- Terrestrial Planets
- Outer Planets
- Small Bodies Orbiting the Sun
- The Sun
- Properties of Stars
- Stellar Evolution
- Stellar Remnants
- The Milky Way
- Galaxies
- Cosmology
Verified teacher and university collections
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- Mr. E Science — Earth and Space Science PowerPoints
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Mathematics
Algebra I
Expressions, equations, graphs and functionsLumen Learning
Complete College Algebra PowerPoints
Seventeen directly downloadable modules from algebra essentials through functions, systems, conics and probability.
- Algebra Essentials
- Polynomial and Rational Expressions
- Coordinate System and Lines
- Equations and Inequalities
- Function Basics
- Operations on Functions
- Linear and Absolute Value Functions
- Quadratic Functions
- Power and Polynomial Functions
- Rational and Radical Functions
- Exponential and Logarithmic Functions
- Exponential and Logarithmic Models
- Systems of Equations and Inequalities
- Systems with Matrices
- Conic Sections
- Sequences and Series
- Probability and Counting
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Mathematics
Algebra II
Polynomials, logarithms, matrices and sequencesMr. Wright · Andrews University
Complete Algebra II PowerPoints
Twelve downloadable chapters covering linear systems, quadratics, polynomials, probability, statistics and trigonometry.
- Linear Functions
- Linear Systems and Matrices
- Graphing Quadratic and Polynomial Functions
- Solving Quadratic Equations
- Solving Polynomial Equations
- Radicals and Rational Exponents
- Exponential and Logarithmic Functions
- Rational Functions
- Probability
- Data Analysis and Statistics
- Trigonometric Ratios and Functions
- Sequences and Series
Verified teacher and university collections
More complete lecture resources
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- Sets and Functions — 64-Page Lecture PDF
- Lumen Learning — College Algebra PowerPoints
- Shawna Haider — College Algebra PowerPoints
- Mr. Wright — Complete Algebra 2 PPTX and PDF Library
- Mr. Bretsch — Algebra 2 Unit Resources
- Prof. Mark Moodie — College Algebra Lecture Notes
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Mathematics
Geometry & Trigonometry
Proofs, transformations, circles and trigonometryMr. Wright · Andrews University
Geometry PowerPoints
Twelve downloadable units: proofs, lines, transformations, triangles, similarity, trigonometry, circles, area and volume.
- Basics of Geometry
- Reasoning and Proofs
- Parallel and Perpendicular Lines
- Transformations
- Congruent Triangles
- Relationships within Triangles
- Quadrilaterals and Other Polygons
- Similarity
- Right Triangle Trigonometry
- Circles
- Measuring Length and Area
- Surface Area and Volume
Mr. Wright · Andrews University
Precalculus & Trigonometry PowerPoints
Functions, analytic trigonometry, conics, vectors, matrices, sequences and an introduction to calculus.
- Functions and Graphs
- Polynomial Functions
- Exponential and Logarithmic Functions
- Trigonometry
- Analytic Trigonometry
- Additional Trigonometric Topics
- Conic Sections
- Systems of Equations and Inequalities
- Matrices
- Sequences and Series
- Three-Dimensional Analytic Geometry
- Introduction to Calculus
Verified teacher and university collections
More complete lecture resources
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- KTL Math — Geometry Notes and PowerPoints
- iMater — Geometry Notes
- Mr. Perez — Interactive Geometry PowerPoint Lessons
- Mrs. Cooney — Geometry PowerPoints
- Shawna Haider — Trigonometry PowerPoints
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Mathematics
Statistics & Probability
Data, probability, distributions and inferenceAfterhours- A&E Study Hub · hosted inside this app
Complete Statistics & Probability PowerPoints
Eleven original, editable lecture decks. These files download directly from this public app with no outside login or file server.
- Studies and Producing Data
- Summarizing Data
- Relationships in Quantitative Data
- Nonlinear Models
- Categorical Data and Probability
- Probability Distributions
- Sampling Distributions and Inference
- Inference for One Proportion
- Inference for Two Proportions
- Inference for Means
- Chi-Square Tests
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Technology
Computer Science
Algorithms, memory, data structures and computingHarvard OpenCourseWare
CS50 Introduction to Computer Science
Downloadable weekly lecture slides and notes covering Scratch, C, algorithms, memory, Python, SQL and web development.
- Week 0: Scratch
- Week 1: C
- Week 2: Arrays
- Week 3: Algorithms
- Week 4: Memory
- Week 5: Data Structures
- Week 6: Python
- Week 7: SQL
- Week 8: HTML, CSS and JavaScript
- Week 9: Flask
- Week 10: Final Topics
Verified teacher and university collections
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- Gilroy Unified — AP Computer Science Notes
- Mr. Neill Lee — AP Computer Science Course Notes
- Computer Fundamentals — 75-Page PDF
- GeeksforGeeks — Computer Fundamentals Tutorial
- GeeksforGeeks — Class 11 Computer Systems Notes
Teach Computing · National Centre for Computing Education
GCSE Computer Science teaching resources
Free Key Stage 4 curriculum with lesson sequences, teacher guides, assessments and downloadable classroom materials.
- Teach Computing — Complete GCSE Computer Science Curriculum
- Teach Computing — GCSE Computer Systems Unit
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Technology
Programming
Python, functions, data, files and databasesHarvard OpenCourseWare
CS50 Introduction to Programming with Python
Lecture notes and slide presentations for functions, conditionals, loops, exceptions, libraries, testing and files.
- Week 0: Functions and Variables
- Week 1: Conditionals
- Week 2: Loops
- Week 3: Exceptions
- Week 4: Libraries
- Week 5: Unit Tests
- Week 6: File I/O
- Week 7: Regular Expressions
- Week 8: Object-Oriented Programming
- Week 9: Et Cetera
University of Michigan · Charles Severance
Python for Everybody Lecture Slides
Sixteen directly downloadable lecture decks covering Python basics through web services, databases and data visualization.
- Introduction
- Expressions
- Conditionals
- Functions
- Iterations
- Strings
- Files
- Lists
- Dictionaries
- Tuples
- Regular Expressions
- HTTP
- Web Services
- Objects
- Databases
- Data Visualization
Verified teacher and university collections
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- University of Toronto — Foundations of Computer Science
- Lumisource — AP Computer Science A Review
Teach Computing · GCSE Programming
Programming sequence and downloadable materials
A structured GCSE sequence beginning with translators, sequence, variables, input and flowcharts.
- Teach Computing — Programming Part 1: Sequence
H
Social Studies
U.S. History & World History
Complete textbooks, primary sources, lessons and full-year coursesHigh-school U.S. history
Complete U.S. History Courses
From Indigenous societies and colonization through the Revolution, Civil War, industrialization, world wars, civil rights and modern America.
- USHistory.org — 60 Units and 400 Free Chapters
- Khan Academy — Complete U.S. History Course
- University of Houston — Digital History Lessons and Primary Sources
High-school world history
Complete World History Courses
Ancient civilizations through the contemporary world, with global connections, primary sources, videos, readings and practice activities.
- OER Project — Full-Year World History Courses
- Khan Academy — Complete World History Course
- OER Project — Big History Self-Directed Course
Free teacher-created U.S. history materials
Teacher U.S. History Lecture Notes
Chapter-by-chapter lecture notes, downloadable PowerPoints, review sheets and classroom presentations from working history teachers.
- Tom Richey — AP U.S. History Units, Lecture Notes and PowerPoints
- Adam Norris — APUSH Period Review Sheets and Chapter Lectures
- Ms. Ayoub — APUSH Chapter 1–14 PowerPoints
Free teacher-created world history materials
Teacher World History Lecture Notes
Full-course lecture pages and downloadable classroom slides covering ancient civilizations through the modern world.
- Tom Richey — World History Units, Notes and PowerPoints
- Freemanpedia — AP World and World History II Lecture Units
- Lakeside High School — World History PowerPoints, Semester 1
Aa
English Language Arts
Grammar, Reading & Writing
Complete grammar lessons, reading strategies and composition coursesUniversity writing labs and open courses
Complete Grammar Lessons
Structured lessons covering parts of speech, sentence structure, punctuation, agreement, usage and editing practice.
- Purdue OWL — Complete Grammar Lessons and Handouts
- Excelsior OWL — Grammar Essentials, Quizzes and Practice
- Khan Academy — Complete Grammar Course
- Quill — Free Interactive Grammar and Sentence Writing
Free reading instruction
Reading Comprehension Lessons
Active reading, previewing, annotating, vocabulary, inference, paraphrasing, summarizing, analysis and synthesis.
- Excelsior University — Online Reading Comprehension Lab
- Lumen Learning — Reading Strategies and Critical Reading
Free composition courses
Writing and Composition Lectures
Step-by-step instruction for thesis statements, paragraphs, essays, argument, drafting, revision and proofreading.
- Excelsior OWL — Complete Writing Process
- Purdue OWL — General and Academic Writing Lessons
- Lumen Learning — English Composition I Full Course
SAT
Test Preparation
SAT Preparation
Math, reading, writing and practice resourcesVerified teacher and university collections
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- CIE Notes — SAT Resource Library
- E Math Academy — Comprehensive SAT Math Notes
College Board and Khan Academy · Current Digital SAT
Free SAT tests, notes and question banks
Official current-format practice for Math and Reading/Writing, including full-length digital and downloadable paper tests.
- Full-Length Digital SAT Practice Tests — Bluebook
- Full-Length SAT Practice Tests — Downloadable PDFs
- SAT Student Question Bank — Math and Reading/Writing
- SAT Math Test Guide — Topics and Question Types
- SAT Reading and Writing Notes — Four Tested Domains
- Official Digital SAT Math Lessons and Practice — Khan Academy
- Official Digital SAT Reading and Writing Lessons — Khan Academy