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Learning Tools

Sixteen interactive tools built into Alpha School courses — graphs, simulators, visualizers, and labs. Everything runs in your browser, no downloads needed. Click a tool to jump to a course page that features it.

Mathematics

Function Grapher

Plot up to three functions at once — linear, quadratic, sine, exponential, absolute value. Drag the trace point along a curve to read coordinates.

Try it in Algebra I →

Quadratic Explorer

Adjust a, b, and c for y = ax² + bx + c. See the discriminant, the roots, and the vertex marked on the graph.

Try it in Algebra II →

Geometry Explorer

Drag a triangle's corners and watch side lengths, angles, area, and perimeter update live. Includes a circle tool for circumference and area.

Try it in Geometry →

Fraction Visualizer

Build any fraction with sliders. Pie and bar visuals show its size, with simplified form, decimal, and percentage.

Try it in Pre-Algebra →

Number Line Explorer

Drag a point along the number line and read its value as a decimal, a fraction, and a percentage — including negatives.

Try it in Pre-Algebra →

Unit Converter

Convert length, mass, temperature, volume, speed, and sample currency rates — with the formulas behind each conversion.

Try it in Geometry →

Science

Projectile Motion Simulator

Set angle and speed, launch the ball, and compare the animated flight with the physics predictions. Play, pause, or step frame by frame.

Try it in Physics →

Pendulum Simulator

Change the length or the planet's gravity and watch the period change. Step mode advances one frame at a time.

Try it in Physics Lab →

Periodic Table (1–36)

Click any of the first 36 elements for its name, atomic number, atomic mass, and family, color-coded by category.

Try it in Chemistry →

Chemical Equation Balancer

Adjust coefficients and watch live atom counts on each side. Balance the equation to prove matter is conserved.

Try it in Chemistry →

Animal Cell Diagram

Click any organelle — nucleus, mitochondria, Golgi, and more — to learn what it does.

Try it in Biology →

Punnett Square

Pick a trait and each parent's genotype to predict offspring genotypes and phenotype probabilities.

Try it in Biology →

Computer Science

Sorting Visualizer

Watch bubble, insertion, and selection sort animate. Play, pause, or step one comparison at a time, with a speed control.

Try it in Data Structures →

Binary Converter

Toggle bits to build a byte, or type decimal or hex — all three views stay in sync, with the ASCII character shown.

Try it in Python →

Languages & History

Vocabulary Flashcards

Flip cards for nine languages — English, Spanish, Hindi, Telugu, Tamil, Bangla, Mandarin, Punjabi, and Gujarati — with shuffle and next/previous.

Try it in Spanish →

Timeline Explorer

Scroll through U.S. and world history. Click any event to read what happened and why it matters.

Try it in U.S. History →

Also in every course

Each course page also includes hand-drawn SVG diagrams — triangle types, atom structure, the water cycle, a program flowchart, verb conjugation charts, maps of the thirteen colonies and ancient civilizations, a pH scale, and a food chain — plus quizzes, adaptive tests, and homework.

Browse all courses →