Are and Perimeter

Third graders have been practicing their measuring skills. Lately, we've practiced measuring the area and perimeter of rectangles.

 Perimeter is the measure around a shape. We might measure the perimeter of a space if we want to put a fence around it.

Area is the measure of space inside a shape. We might measure the perimeter of a space if want to cover the space with a rug.

Today, third graders made a connection between arrays and area. To determine the area of a rectangle, you can multiply width x length similar to the way we multiply rows x columns in an array.

 Happy measuring!