Exploring Squares and Square Roots

Mr. Boyd introduces an algebra lesson focused on square and cube roots. The lesson begins with an explanation of perfect squares, followed by a detailed discussion on square roots, including their properties and examples. The video also covers how to calculate square roots of fractions and includes exercises to identify perfect squares. The lesson concludes with a preview of the next topic on estimating square and cube roots.

What is the square of 5?

• 25

• 15

• 10

• 20

Which of the following numbers is a perfect square?

• 24

• 20

• 16

• 8

What is the opposite operation of squaring a number?

• Subtraction

• Square root

• Addition

• Multiplication

How many square roots does a positive number have?

• Four

• Three

• One

• Two

What is the square root of 49?

• 8

• 7

• 6

• 5

What is the negative square root of 4?

• -1

• -2

• -3

• -4

What is the square root of 1/16?

• 1/2

• 1/4

• 1/8

• 1/16

What is the negative square root of 81/25?

• -6/5

• -7/5

• -9/5

• -8/5

Which of the following is a perfect square?

• 121

• 160

• 50

• 32

What is the square root of 324?

• 16

• 17

• 18

• 19