# CCSS.Math.Content.8.NS.A.2

Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., π2). For example, by truncating the decimal expansion of √2, show that √2 is between 1 and 2, then between 1.4 and 1.5, and explain how to continue on to get better approximations.

## Pi Lesson Plan: Geometry

Posted by rachele on

*Click to open and customize your own copy of the Pi Lesson Plan.
This lesson accompanies the BrainPOP topic Pi, and supports the standard of using the formulas for the area and circumference of a...

## Math Skills Lesson Plan: It’s All Fun and Games

Posted by SM Bruner on

In this math skills lesson plan, which is adaptable for grades 3-12, students work collaboratively to research selected math skills. Students then create, play, and assess a math game that is designed...