Course Catalog
Real courses across every subject and level — from Kindergarten through PhD.
Level
Subject
122 courses
Early Math: Counting & Addition
A friendly first course in numbers — counting, comparing, and adding small amounts with hands-on examples.
Reading & Phonics
The building blocks of reading: letter sounds, blending, and sight words.
Multiplication & Division
Times tables that make sense: equal groups, arrays, and sharing fairly — the foundation for all later math.
Exploring Our World: Weather & Nature
Young scientists observe the sky, seasons, plants, and animals — and learn to ask 'why?'.
Telling Time & Money
Read a clock and count coins with confidence: hours and minutes, dollars and cents, and making change.
Space for Kids
Blast off through the solar system — the Sun, Moon, planets, and stars, explained for young explorers.
Intro to Coding with Blocks
Kids' first programming: sequences, loops, and events using drag-and-drop blocks.
Fractions & Decimals
Parts of a whole made friendly: naming fractions, comparing them, and meeting decimals for the first time.
Stories & Storytelling
Every story has a beginning, middle, and end. Meet characters, settings, and problems — then tell a story of your own.
Spanish for Beginners
Greet, introduce yourself, and count — your first steps in Spanish.
Pre-Algebra Foundations
Bridge arithmetic and algebra: integers, fractions, ratios, and the meaning of a variable.
Simple Machines
Levers, ramps, pulleys, and wheels — the six simple machines that make hard jobs easy, with build-it-yourself labs.
How AI Works
A clear-eyed introduction to artificial intelligence: how machines learn from examples, where they shine, and where they fail.
Earth & Life Science
Middle-school science: cells, ecosystems, rocks, and the water cycle.
Vocabulary Builders
Grow a mighty word bank — synonyms, antonyms, prefixes, and roots that unlock new words.
Python Programming for Beginners
Write your first real programs: variables, loops, and functions in Python.
Introduction to Drawing
See like an artist: line, shape, and shading from simple observation.
Algebra I
Linear equations, inequalities, and functions — the core algebra every high schooler needs.
Physical Science: Forces & Energy
Push, pull, launch, and glide — how forces move things, how energy changes form, and why 45° throws farthest.
Mental Math Tricks
Fast, friendly tricks for adding, doubling, and multiplying in your head — no paper needed.
Grammar & Composition
Parts of speech, sentence structure, and writing a clear paragraph.
Robotics & Sensors
How robots sense, think, and act: sensors, simple logic, and the sense-think-act loop behind every robot.
Biology
The science of life: cells, DNA, evolution, and how organisms work.
Intro to Game Development
Build your first games — sprites, the game loop, collisions, and score, one step at a time.
Long Ago and Today
A young learner's first history: how life changes over time, and how we know about the past.
World History
From early civilizations to the modern era — empires, trade, and turning points.
Oceanography: The Blue Planet
Dive into the ocean that covers most of Earth: waves, tides, currents, and the strange life of the deep.
Web Development
Build web pages from scratch: structure content with HTML and style it with CSS.
Ancient Civilizations
Walk through Mesopotamia, Egypt, Greece, and Rome — the first cities, writing, law, and ideas that still shape us.
French I
Pronunciation, greetings, and everyday vocabulary to start speaking French.
Geometry
Reason about shape and space: angles, triangles, the Pythagorean theorem, and proof.
The Medieval World
A thousand years between Rome and the Renaissance: castles and knights, monks and merchants, plague and power.
Essay Writing
From blank page to strong argument — thesis, structure, evidence, and revision.
World Geography
Read the map of the world: continents and oceans, map skills, and how place shapes life.
Algebra II
Quadratics, exponents, logarithms, and functions — the algebra that opens the door to calculus.
Chemistry
Atoms, bonding, reactions, and the periodic table — matter and how it changes.
Literature & the Essay
Read closely and write a persuasive literary essay with a clear thesis.
Astronomy
Explore the solar system and beyond: planets, the Sun, and the life cycle of stars.
Physics
Motion, forces, energy, and waves — the rules the universe runs on.
Graphic Design Basics
Make posters people actually read: layout, type, color, and contrast — the visual grammar of good design.
Genetics & Heredity
Genes, alleles, and Punnett squares — how traits pass from parents to the next generation.
Economics & Personal Finance
Supply, demand, and your own wallet: how markets set prices, and how budgeting and compound interest build a future.
Dance Fundamentals
Move with rhythm and confidence — basic steps, timing, and expression across styles.
Creative Writing
Find your voice in fiction and poetry: build characters, scenes, and vivid imagery.
United States History
Founding, Civil War, and the 20th century — the events that shaped a nation.
The Modern World: 1900–Now
The century that made today — world wars, the Cold War, decolonization, and globalization.
Statistics
Make sense of data: mean, median, and mode, plus the basics of probability and chance.
Human Anatomy & Physiology
How the body works: the skeletal, muscular, circulatory, and nervous systems, and how they cooperate to keep you alive.
Music Theory Basics
Read rhythm and pitch: notes, the staff, and simple scales.
Korean for Beginners
Hangul, greetings, and everyday words — begin your Korean journey with confidence.
Trigonometry
Sine, cosine, and tangent from triangles to the unit circle — the math of angles, waves, and rotation.
Cybersecurity Fundamentals
Think like a defender: passwords, encryption, phishing, and how the internet keeps secrets safe.
Digital Photography
Make better pictures: exposure, composition, and light — how a camera turns a scene into an image.
Italian for Beginners
Greetings, numbers, and café phrases — start speaking Italian from your very first lesson.
Electricity & Circuits
Voltage, current, and resistance — build the mental model behind every circuit, from a flashlight to a laptop.
Programming with Java
An AP-style introduction to object-oriented programming with Java.
Animation Basics
Bring drawings to life — frames, keyframes, timing, and the principles of motion.
Calculus I
Limits, derivatives, and integrals — the mathematics of change, with worked intuition.
Environmental Science
How ecosystems work and how humans affect them — energy flow, pollution, and climate change.
Civics & Government
How power works: constitutions, the three branches, rights, and how a citizen shapes a nation.
Probability & Combinatorics
Counting, chance, and combinations — from coin flips to how many ways a team can line up.
Precalculus
Bridge algebra and calculus: functions, domain and range, and an introduction to trigonometry.
Arabic for Beginners
The script, sounds, and first phrases of Arabic — greet, count, and introduce yourself.
Public Speaking & Debate
Speak with confidence: structure an argument, handle nerves, and persuade a live audience.
Data Science with Python
Turn raw data into insight — cleaning, exploring, and visualizing data with pandas.
German I
Start speaking German: greetings, the alphabet's sounds, and everyday nouns with their articles.
History of Asia
Empires, philosophies, and inventions across China, India, Japan, and beyond.
Data Structures & Algorithms
Arrays, trees, hashing, and Big-O — write code that scales.
American Sign Language I
A visual language with its own grammar: fingerspelling, first signs, and the facial expression that carries meaning.
Reading Poetry
Unlock the music and meaning of poems — imagery, meter, rhyme, and figurative language.
Journalism & Media Literacy
Report the news and read it wisely: sourcing, the inverted pyramid, and telling fact from opinion in a noisy feed.
History of Africa
Kingdoms of gold, great cities, and trade — Africa's rich history from Egypt to independence.
Japanese I
Begin Japanese: hiragana, greetings, and simple sentences with the particles that hold them together.
Theater & Drama
Step onto the stage: the parts of a play, basic acting, and how a story is staged.
Russian for Beginners
Cyrillic, greetings, and first words — read the alphabet and start speaking Russian.
Fashion Design
From mood board to garment — silhouette, textiles, color, and the design process.
Databases & SQL
Store and query data: relational tables, keys, and writing SELECT queries in SQL.
Mandarin Chinese I
Tones, pinyin, and your first characters and phrases in Mandarin.
Linear Algebra
Vectors, matrices, and linear transformations — the backbone of data science and graphics.
Cloud Computing
Servers you rent, not own — IaaS, containers, scaling, and availability in the modern cloud.
Blockchain & Crypto
Ledgers no one owns — hashes, blocks, consensus, keys, and smart contracts explained clearly.
Operating Systems
What really happens between your code and the hardware: processes, scheduling, memory, and why the illusion holds.
Discrete Mathematics
The math of computer science: logic, proofs, sets, counting, and graphs — reasoning about discrete structures.
Computer Networks
How the internet actually works: packets, addresses, routing, and the layered protocols that carry every click.
Organic Chemistry
The chemistry of carbon: nomenclature, functional groups, and reaction mechanisms.
Thermodynamics
Heat, work, and entropy — the laws governing energy, engines, and why time has a direction.
Art History
From the Renaissance to modern movements — how to look at and talk about art.
Sculpture & 3D Form
Shape space itself — carving, modeling, and casting three-dimensional form.
Differential Equations
Equations whose unknowns are functions: model growth, decay, and oscillation, and see why solutions behave as they do.
Women's History
Suffrage, work, and struggle — recovering women's roles and voices across history.
Mobile App Development
Build interactive apps: screens, state, user input, and the event loop that ties them together.
Latin I
The language beneath the languages: first declensions, core vocabulary, and the Roman words hiding inside English.
Numerical Methods
How computers solve equations they can't solve exactly — roots, integrals, and error.
Creative Coding
Program pictures that move and respond — generative art and interaction with p5.js.
Color Theory & Design
The science and craft of color: the wheel, harmony, contrast, and how composition guides the eye.
Shakespeare
Tragedy, comedy, and the sonnet — reading the bard with confidence.
Materials Science
Why steel bends, ceramics shatter, and silicon computes — structure, properties, and design of materials.
Filmmaking & Video Storytelling
Tell stories with a camera: shots and coverage, exposure and light, and the edit that turns footage into film.
Geology: The Dynamic Earth
Plate tectonics, the rock cycle, earthquakes, and deep time — how the planet builds and reshapes itself.
Number Theory
Primes, divisibility, and modular arithmetic — ancient questions about whole numbers that now secure the internet.
The Cold War
Four decades on the edge: superpower rivalry, proxy wars, the space race, and the wall that finally fell.
Machine Learning
Graduate-level ML: supervised vs unsupervised learning, training, and generalization.
Advanced Spanish: Grammar & Expression
Move beyond the basics: the subjunctive mood, ser vs. estar, and the register that makes speech sound native.
Modern European History
Revolutions, world wars, and the making of modern Europe.
Compilers
How source code becomes machine code — lexing, parsing, semantics, and code generation.
Immunology
How the body defends itself — innate and adaptive immunity, antibodies, vaccines, and memory.
Real Analysis
The rigorous foundation of calculus: sequences, limits, and epsilon-delta proof.
Introduction to Linguistics
Graduate study of how language works: the sounds, structures, and meaning beneath every tongue.
Literary Theory
Graduate approaches to reading: how critical lenses like formalism and reader-response reshape a text.
Neuroscience
Graduate tour of the brain: how neurons fire, how synapses learn, and how circuits of cells become behavior.
Molecular Biology
Graduate study of the molecules of life: DNA replication, transcription, and how genes become proteins.
Microbiology
The unseen majority: graduate study of bacteria, viruses, and microbes — how they grow, cause disease, and keep ecosystems (and us) alive.
Aesthetics & Art Criticism
Graduate inquiry into what makes something art, how we judge it, and the frameworks critics use to argue.
Historiography & Method
Graduate methods: how historians read sources, weigh evidence, and argue about the past itself.
Research Methods in the Humanities
Doctoral craft: methodologies, literature reviews, and reasoning about evidence.
Sociolinguistics: Language in Society
Doctoral study of how language varies with region, class, and identity — and how that variation carries power.
Visual Culture & Critical Theory
Doctoral seminar on the image in society: how looking is structured by power, gender, and the media that surround us.
Seminar: Memory, Power & the Archive
Doctoral seminar on how archives are built, whose past survives in them, and how public memory is contested.
Quantum Mechanics
Doctoral physics: wavefunctions, superposition, and the Schrödinger equation.
Astrophysics & Cosmology
Doctoral study of the universe at large: stellar physics, redshift and expansion, and the evidence for the Big Bang.
Advanced Algorithms
Doctoral algorithm design: NP-completeness, approximation, and the limits of efficient computation.
Algebraic Topology
Doctoral study of shape up to deformation: homotopy, the fundamental group, and homology.