Lesson Plan
OER Commons

Oer Commons: Polygons

For Teachers 7th
Seventh graders find the area of regular polygons, recalling what they already know about the area of geometric shapes and generalizing a formula for any regular polygon.
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Graphing Calculator Practice Problems Areas and Volumes

For Students 9th - 10th Standards
Practice using your graphing calculator for area and volume problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
Lesson Plan
Better Lesson

Better Lesson: Area of Triangles

For Teachers 6th Standards
Sixth graders apply what they know about area of other polygons to develop a formula for finding the area of a triangle.
Lesson Plan
OER Commons

Oer Commons: Exploring Polygons

For Teachers 6th - 8th
In this lesson, young scholars explore different polygons by drawing them, measuring angles, and manipulating interactive sketches to find the angle sum for any polygon. Students also explore the angle measures in regular polygons....
Interactive
Calculator Soup

Calculator Soup: Regular Polygon Calculator

For Students 9th - 10th Standards
Use this calculator to calculate properties of a regular polygon. Enter any 1 variable plus the number of sides or the polygon name. Calculates side length, inradius, circumradius, area, and perimeter.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 6.ee Rectangle Perimeter 2

For Teachers 6th - 8th
This task is a natural follow up for task Rectangle Perimeter 1. After thinking about and using one specific expression for the perimeter of a rectangle, they now extend their thinking to equivalent expressions for the same quantity....

Other popular searches