- Probability, Counting and Combinatorics

This plan will help Mathletes to develop a strategic approach to counting the occurrences of a certain shape in a more complex figure made of multiple intersecting lines.

- Probability, Counting and Combinatorics

- 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

Video by Art of Problem Solving's Richard Rusczyk.

- Probability, Counting and Combinatorics

Video by Art of Problem Solving's Richard Rusczyk.

- Probability, Counting and Combinatorics

Video by Art of Problem Solving's Richard Rusczyk.

- Problem Solving (Misc.)

Video by Art of Problem Solving's Richard Rusczyk.

- Problem Solving (Misc.)

Video by Art of Problem Solving's Richard Rusczyk.

- Algebraic Expressions and Equations
- Plane Geometry
- Problem Solving (Misc.)

Video by Art of Problem Solving's Richard Rusczyk.

- Solid Geometry

Video by Art of Problem Solving's Richard Rusczyk.

- Number Theory
- Problem Solving (Misc.)

Mathletes are likely most comfortable working with numbers in base 10, but there are many other number systems to explore - other integer bases, fractional bases, and even negative bases. This plan...