Unit Plan
Khan Academy

Khan Academy: Challenge Problems: Circumscribing Shapes

For Students 9th - 10th Standards
Solve two challenging problems that apply properties of tangents to find the perimeter of a circumscribing shape.
Interactive
Study Pad

Splash Learn: Partition Shapes: Halves and Fourths

For Students 1st Standards
[Free Registration/Login Required] Answer questions about the halves and fourths of circles and rectangles, and collect coins for each correct answer.
Interactive
Other

Kinderweb: Educational Children's Games

For Students Pre-K - 1st Standards
Use this site to practice identifying shapes, colors, and animals with these interactive games.
Lesson Plan
Better Lesson

Better Lesson: Circes All Around!

For Teachers K Standards
Kindergarteners love to identify shapes in their environment. In order effectively do that, they must be able to recognize different shapes by their specific attributes. In this lesson plan kindergartners learn about the attributes of a...
Interactive
Calculator Soup

Calculator Soup: Circular Cylinder Calculator

For Students 9th - 10th
This online calculator will calculate the various properties of a cylinder given 2 known values. It will also calculate those properties in terms of PI.
Interactive
Calculator Soup

Calculator Soup: Cone Calculator

For Students 9th - 10th
This online calculator will calculate the various properties of a right circular cone given any 2 known variables.
Lesson Plan
Alabama Learning Exchange

Alex: Discovering Pi

For Teachers 6th - 8th
This lesson allows young scholars to discover the number Pi. By measuring real life objects, students will get to see where the number Pi comes from as well as how the circumference formula is derived.This lesson plan was created as a...