Khan Academy
Khan Academy: Decomposing Shapes to Find Area: Add
Demonstrates how to break an irregular shape into three rectangles, find the individual areas, and then add them together. [3:36]
Virtual Nerd
Virtual Nerd: How Do You Find the Perimeter of a Shape?
The perimeter is the distance around an object. Watch this tutorial to learn how to find the perimeter of a shape. [3:36]
Khan Academy
Khan Academy: Decomposing Shapes to Find Area: Grids
Demonstrates how to break an irregular shape into its parts, find the individual areas, and then add them together. [2:51]
Sophia Learning
Sophia: Area
This lesson will teach you how to find the area of various shapes as well as provide some example problems. Student watch a video tutorial and then take an online quiz.
Sophia Learning
Sophia: Area
This lesson will teach you how to find the area of various shapes as well as provide some example problems. Student watch a video tutorial and then take an online quiz.
Mucho Math
Algebra2go: Finding Perimeter of Rectangular Shapes
This video requires students to find missing side lengths of rectangular shapes prior to finding the perimeter.
PBS
Pbs Learning Media: Real Life Math: Woodworker
Listen to a master craftsman explain many of the ways that mathematics is used in woodworking, including number operations; geometry; ratios and proportions; and measurement. In the accompanying activity, students will draw a scale...
Khan Academy
Khan Academy: Equal Parts of Circles and Rectangles
Sal determines if shapes are divided into 2 or 4 equal sections.