Sophia: Finding Area With a Grid: Lesson 4

To find the whole, add and subtract the pieces. A portion of a massive geometry playlist shows how to approach finding the area of a composite figure. The resource works with a couple different composite shapes to find their areas.

Step by step, this video lesson [4:34] will show you how to add up the number of squares that cover an object in order to find the area of a figure. It is 4 of 7 in the series titled "Finding Area with Squares."...

Step by step, this lesson will show you how to add up the number of squares on the grid that are covered/contained by the shape in order to find the area of a figure. It is 6 of 7 in the series titled "Finding Area with a Grid."

Step by step, this video lesson [2:41] will show you how to add up the number of squares that cover an object in order to find the area of a figure. It is 3 of 7 in the series titled "Finding Area with Squares."...

Step by step, this lesson will show you how to add up the number of squares on the grid that are covered/contained by the object in order to find the surface area of a figure. It is 4 of 7 in the series titled "Finding Surface Area with...

The process of applying the division rule when there are negative exponents present will be covered in this lesson. It is 4 of 16 in the series titled "Division Rule with Negative Exponents."

Sal finds the area of a rectangle with fractional side lengths.

Step by step, this lesson will show you how to add up the number of squares on the grid that are covered/contained by the shape in order to find the area of a figure. It is 7 of 7 in the series titled "Finding Area with a Grid."

Sal discusses intuition for area of a rectangle with fractional side lengths.

Extend young mathematicians' understanding of area with a geometry lesson on trapezoids. Building on their prior knowledge of rectangles and triangles, students learn how to calculate the area of trapezoids and other...