Understanding Factors and Perfect Squares

This lesson covers square roots and perfect squares, explaining how to identify perfect squares using factors. It includes creating a reference chart for factors, identifying prime numbers, and understanding numbers with odd and even factors. The lesson also explores square numbers through rectangles and provides exercises for calculating square roots.

What is a perfect square?

• A number that can be divided by 2

• A number that is the product of two identical whole numbers

• A number that is a multiple of 10

• A number that is less than 10

Which of the following is NOT a factor of 8?

• 4

• 3

• 2

• 1

What is the term for numbers that have only two factors?

• Composite numbers

• Prime numbers

• Even numbers

• Odd numbers

Which of the following numbers is a perfect square?

• 20

• 16

• 12

• 8

What is the square root of 81?

• 8

• 10

• 9

• 7

What does the radical sign represent?

• Subtraction

• Addition

• Square root

• Multiplication

If a number has an odd number of factors, what can it be classified as?

• An even number

• A prime number

• A composite number

• A perfect square