Math Antics
Area
Area is a two-dimensional measurement for a two-dimensional figure. The introduction of area expands on the idea of the one-dimensional measurement of length, but instead of staying one-dimensional, it goes in two directions. The video...
CK-12 Foundation
Ck 12: Elem Math: Overview of Composite Figures Made of Squares and Rectangles
[Free Registration/Login may be required to access all resource tools.] Video explaining two ways of finding the area of an irregular shape that is composed of two rectangles. [0:51]
Khan Academy
Khan Academy: Intro to Area and Unit Squares
Models how to find the area of shapes that have only right angles by covering them with square units. [4:17]
Imagine Learning Classroom
Learn Zillion: Find Area by Counting Square Units
In this lesson, you will find the area of a complex shape by counting the square units. Login gives access to a slideshow as well. [4:17]
Khan Academy
Khan Academy: Counting Faces and Edges of 3 D Shapes
Sal identifies the faces and edges on various 3D shapes. [3:36]
Khan Academy
Khan Academy: Recognizing Common 3 D Shapes
Sal identifies the following 3D shapes: square pyramid, rectangular prism, triangular prism, cylinder, and cone. [3:28]
CK-12 Foundation
Ck 12: Elem Math: Overview of Quadrilaterals
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on the properties of various quadrilaterals.
Loyola University Chicago
Math Flix: Polygons
This video [4:39] provides an opportunity to learn about the characteristics of polygons. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Khan Academy
Khan Academy: Measuring Area With Partial Unit Squares
Models how to find the area of a shape on a grid that has different angle sizes by counting both square and partial units. [3:16]
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]
Khan Academy
Khan Academy: Measuring Rectangles With Different Unit Squares
Sal finds area of a rectangle with different sized units.