- Algebraic Expressions and Equations
- Plane Geometry

Mathletes will become familiar with properties of 45-45-90 and 30-60-90 triangles. In this plan, the relationships between the sides of these two special right triangles will be derived. Then...

- Algebraic Expressions and Equations
- Plane Geometry

- Plane Geometry

Video by Art of Problem Solving's Richard Rusczyk.

- Plane Geometry
- Probability, Counting and Combinatorics

Video by Art of Problem Solving's Richard Rusczyk.

- Plane Geometry

Video by Art of Problem Solving's Richard Rusczyk.

- Plane Geometry
- Proportional Reasoning

Video by Art of Problem Solving's Richard Rusczyk.

- Algebraic Expressions and Equations
- Plane Geometry

Video by Art of Problem Solving's Richard Rusczyk.

- Measurement
- Plane Geometry
- Proportional Reasoning

Understanding and applying ratios can be used in a variety of problems, from finding a missing measurement to determining scale between similar figures. Mathletes will solve problems using ratios...

- Plane Geometry
- Proportional Reasoning

Learn what Mass Points are and how to use them to solve problems involving side lengths and areas of triangles. Mass Points Part 1 (above) covers the fundamentals of Mass Points, while Mass Points...