We can use perimeter to compare rectangles with the same area. We can create different rectangles with the same area. Then we can calculate the perimeters to see how they change. Perimeter is the distance around a figure. Area is the number of unit …
We can use perimeter to compare rectangles with the same area. We can create different rectangles with the same area. Then we can calculate the perimeters to see how they change. Perimeter is the distance around a figure. Area is the number of unit squares that are needed to cover the surface of a figure. We can create rectangles that will have a given area of square units by listing all the possible factors of that given area. The rectangle with the smallest perimeter will have four sides all the same length, or will almost look like a square. The rectangle with the greatest perimeter will have two sides that are much longer than its other two sides. We can draw rectangles that have a given area of square units on grid paper by starting with a side length of 1 and increasing the length by one unit until we find rectangles with that given area of square units. Whole numbers are counting numbers such a 0, 1, 2, 3, 4, and so on. A rectangle with whole number side lengths will have an area that can be divided evenly by each of the side lengths.
3rd Grade Math 11.4, Understand Area
https://youtu.be/aFV10b08kz4
3rd Grade Math 11.5, Measure Area
https://youtu.be/zuHw8YEfiUg
3rd Grade Math 11.6, Use Area Models
https://youtu.be/FH92gmheAds
3rd Grade Math 11.7, Word Problem Solving, Area of Rectangles
https://youtu.be/pZnuaJJfPlc
3rd Grade Math 11.8, Area of Combined Rectangles
https://youtu.be/LomMvWcSn0Q
3rd Grade Math 11.9, Same Perimeters, but Different Areas
https://youtu.be/BEO9I6-Dlis
3rd Grade Math Playlist (2015)
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVPton7wjphpYAhdTjnJsw0
I'm using the Houghton Mifflin Go Math!
2015 copyright textbook for this playlist.
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