Intro to Finding Area

You can make an array that is 12 columns and 8 rows and add 12 eight times to find 96.

Length is a measurement that tells how far it is from one end of something to the other end. Length is measured in units such as centimeters, meters, inches, feet, and miles.

It is important to have measurement units that other people can understand and know are the same size.

A square is a shape with four sides that are all the same length and four square corners.

Yes. You could count the number of tiles and say that the room floor takes up that number of tiles.

Area is the amount of space inside a shape. Area is measured using square units.

You could draw a shape on the paper and count the number of square units inside the shape.

You can find the number of cells in an array by multiplying the number of rows by the number of columns. This is the same idea as finding area, but the cells are square inches. 6 inches times 8 inches is 48 square inches.

You can break the shape up into smaller pieces that are squares and rectangles, find the area of the smaller pieces, and then add them together. An L or a T can each be broken into two pieces that are rectangles.

Lars has 20 photos left over. Garrett uses 8 × 10 = 80 photos. Lars only uses 12 × 5 = 60 photos. 80 – 60 = 20 photos left over.