Numbers and Their Operations — Laws of Square and Cube Roots

About this lesson

This unit teaches the laws of multiplication and division of square roots and cube roots. Students learn to simplify radical expressions by factoring out perfect squares or perfect cubes, rationalizing denominators, and combining like radical terms. The unit includes worked examples, self-evaluation exercises, and real-life geometry problems involving perimeters and areas of squares and rectangles, such as finding the side length of a square given its area or the length of a fence around a seedbed. By the end, students should be able to apply these laws to simplify numerical expressions and solve practical problems.