Instructional Video
Sophia Learning

Sophia: Converting Between Square Feet and Square Yards

4th - 9th
This lesson demonstrates the conversion between square feet and square yards.
Instructional Video
Sophia Learning

Sophia: Estimating Area

7th - 8th
The fact that you can estimate the area of an object by rounding each of the relevant dimensions to the nearest number will be discussed in this lesson.
Instructional Video
Sophia Learning

Sophia: Solving Height or Base of a Triangle Given Its Area #6

9th - 10th Standards
This lesson will provide practice solving the unknown height or base length of a triangle when given its area.
Instructional Video
Khan Academy

Khan Academy: Decomposing Shapes to Find Area: Grids

2nd - 3rd Standards
Demonstrates how to break an irregular shape into its parts, find the individual areas, and then add them together. [2:51]