- Probability, Counting and Combinatorics

This plan builds on what Mathletes already know about ratios to introduce the definition of probability as a ratio of desired outcomes to total outcomes. Mathletes will then practice calculating the...

- Probability, Counting and Combinatorics

- Percents and Fractions

Video by Art of Problem Solving's Richard Rusczyk.

- Algebraic Expressions and Equations
- Percents and Fractions

This plan focuses on all things percents. Mathletes will practice with tips, markups, markdowns, interest and percent of quantity scenarios. Use the 'would you rather' questions in the extension to...

- 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...

- Algebraic Expressions and Equations

Video by Art of Problem Solving's Richard Rusczyk.

- Algebraic Expressions and Equations

An important formula to know, the difference of squares identity is derived geometrically in the video for this practice plan. Mathletes will then try to recognize the difference of squares structure...

- Algebraic Expressions and Equations

Video by Art of Problem Solving's Richard Rusczyk.

- Algebraic Expressions and Equations

Video by Art of Problem Solving's Richard Rusczyk.

- Algebraic Expressions and Equations

Video by Art of Problem Solving's Richard Rusczyk.