Mrs. Moore's Class Blog

Adventures in Education

Area and Perimeter

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Today we discovered that shapes that have the same area, don’t always have the same perimeter. It can also sometimes be the same area and perimeter. Perimeter measures the outside or barrier of the shape. Area measures the surface or inside of a shape. We could use perimeter to figure out how much fence you need for a dog pen or a flower bed. Area we learned you need to measure length times width to find the area. This can be used to find how much paint you need for a wall or how much grass you would need for a playground. Sometimes you need to use both perimeter and area to find out what you need to know. You can also use this to find out all the measurements for a shape.

 

Have you ever used perimeter or area for a project you have done?

Do you know what you would use length x width x height to find? 

Author: Mrs. Moore

3rd grade teacher in Arizona, USA

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