- Algebraic Expressions and Equations
- Plane Geometry
- Algebraic Expressions and Equations
- Proportional Reasoning
- Solid Geometry
Melrose’s hot air balloon is a sphere of diameter 100 feet. How many cubic feet of air will Melrose’s hot air balloon hold when completely filled? Express your answer as a decimal to the nearest tenth...
- Percents and Fractions
- Solid Geometry
For the following problems, assume that the snowballs are perfect spheres. Chiquita and Rhonda are each building a snowman. Rhonda tells Chiquita that she is making each of her 3 balls of snow 20%...
- Problem Solving (Misc.)
- Proportional Reasoning
- Solid Geometry
A 6-inch tall flower casts a 4-inch shadow at 5:00pm. One month later, when the sun was at the same position in the sky as it was at 5:00pm one month earlier, the shadow cast was 5 1/3 inches long...
- Plane Geometry
- Proportional Reasoning
Video by Art of Problem Solving's Richard Rusczyk.
- Plane Geometry
- Proportional Reasoning
Video by Art of Problem Solving's Richard Rusczyk.
- Measurement
Finalist in the 2017-2018 Math Video Challenge. This video was created by Salk School of Science.
- Algebraic Expressions and Equations
- General Math
After refreshing Mathletes on the order of operations, the video will then focus on how to solve problems where an unfamiliar symbol is defined to be a new type of operations that follows given rules.
- 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.