Finding Square Roots of Perfect Squares

This lesson covers the concept of square roots, focusing on perfect squares. It explains how to find square roots by visualizing squares and using the radical sign. The lesson addresses common misconceptions, such as confusing square roots with division, and introduces irrational numbers for non-perfect squares. Examples are provided to demonstrate finding square roots of perfect squares, emphasizing the importance of guessing and checking integers.

What is the square root of 16?

• 2

• 3

• 4

• 5

Which of the following is a common misconception about finding square roots?

• Square root is the side length of a square

• Square root is found by guessing and checking

• Square root is found by dividing by 2

• Square root is represented by a radical sign

What is the correct method to find the square root of a perfect square?

• Multiply the number by 4

• Divide the number by 4

• Guess an integer and square it

• Divide the number by 2

What type of number is the square root of 2?

• Integer

• Rational number

• Irrational number

• Whole number

What is the square root of 361?

• 20

• 17

• 18

• 19