In this animated activity, learners read about the properties of a rectangle and its components. They then work practice problems to find the perimeter and area of rectangles.

In a series of practice problems, learners use the addition or subtraction method to solve systems of linear equations, also called "simultaneous linear equations."

Learners study the properties of a sphere and use geometric formulas to find volume and surface area.

In this animated activity, learners read about the properties of a square and its components. They then work practice problems to find the perimeter and area of squares.