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Courses in **Foundational Math**

- Solving Equations
- Measurement
- Mathematical Fundamentals
- Geometry I
- Reasoning with Algebra
- Functions and Quadratics

Sign up for Brilliant for Educators to get free access to interactive lessons and tools. Enrich your math team coaching, club meetings, and classroom instruction with fun and challenging math problems and courses!

- Divisibility Shortcuts
- Exploring Infinity
- Factor Trees
- Fermat's Little Theorem
- Greatest Common Divisor
- Least Common Multiple
- Modular Arithmetic
- Modular Congruence
- Modular Inverses
- Prime Factorization
- The 100 Doors Puzzle
- Totients

- Cross Sections
- Dissecting Shapes
- Distance in 3D
- Dual Polyhedra
- Euler's Formula
- Folding
- Nets
- Paths on a Surface
- Platonic Solids
- Polyhedra

- Binary
- Truth Tables
- Logic Gates
- Venn and Euler Diagrams
- Propositional Logic
- The Square of Opposition
- De Morgan's Laws
- Inclusive and Exclusive OR
- Combinatorics
- Knight and Knave Puzzles
- Combinatorial Game Algorithms

- Angle Hunting
- Composite Figures
- Counting Strategies
- Factorials
- Mean, Median, Mode
- Probability
- Problem Solving
- Prime Factorization
- Sequences and Series
- Similarity
- Venn Diagrams

- Estimating Probability
- Rule of Sum
- Rule of Product
- Conditional Probability
- Bayes' Rule
- Dependence and Independence
- Cumulative Probabilities
- Probability Estimates
- Updating Probabilities
- Probability Simulation

All of our courses are crafted by award-winning teachers, researchers, and professionals from MIT, Caltech, Duke, Microsoft, Google, and more.

- Solving Equations
- Measurement
- Mathematical Fundamentals
- Geometry I
- Reasoning with Algebra
- Functions and Quadratics