- General Math
- Sequences, Series and Patterns
- General Math
- Percents and Fractions
- Proportional Reasoning
- Solid Geometry
A town in South Dakota decides to have an “End of the Summer” pool party and invites all of the households in the town that have school aged children. Twenty-seven households are invited to the party...
- Plane Geometry
Video by Art of Problem Solving's Richard Rusczyk.
- Plane Geometry
- Proportional Reasoning
- Solid Geometry
Video by Art of Problem Solving's Richard Rusczyk.
- Coordinate Geometry
Animation Type: Static Images, Stop Motion
- Algebraic Expressions and Equations
- General Math
- Plane Geometry
The Washington Monument in Washington, D.C. is an obelisk. An obelisk is a tall monument with four gently sloping sides and a pyramid shape on top. The obelisk structure first appeared in Ancient...