Areas of Geometric Shapes with the Same Perimeter
A triangle, square, hexagon, and circle all have a perimeter of one unit. Eighth graders must attempt to find the area of each and arrange them in order from least to greatest areas. A terrific task for applying four different area...
7th - 9th Math CCSS: Designed
Using Linear Equations to Define Geometric Solids
Making the transition from two-dimensional shapes to three-dimensional solids can be difficult for many geometry students. This comprehensive Common Core lesson starts with writing and graphing linear equations to define a bounded region...
9th - 11th Math CCSS: Designed
Perimeters: Which Constellation is the Longest?
High schoolers use diagrams of the constellation Orion and the constellation Ursa Major which show the distances between the stars of the constellations. They calculate the perimeters of each, find the average distance of the stars for...
8th - 10th Math
Search the Perimeter and Secure the Area
Begin this study on the relationship between area and perimeter with the hook activity featured at the bottom of the "What Shape is Your Land?" link, which offers a fun optical trick to engage high schoolers. Learners should have a basic...
9th - 12th Math CCSS: Designed
What Members Say
- Lori H., 1st year teacher
- Phoenix, AZ