Math Jeopardy!

Before and After

You have 20 seconds to try to guess the phrase. Letters will slowly appear during this time to help you figure it out. The winner receives a prize!

Math Jeopardy

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BEFORE AND AFTER

P E R F E C T

S Q U A R E

R O O T S

*PERFECT * SQUARE * ROOTS*

SOL 8.5

The Objective

The student, given a whole number from 0 to 100, will identify it as a perfect square or find the two consecutive whole numbers between which the square root lies.

8.5 GOALS….

• Identify the perfect squares from 0 to 100.

• Identify the two consecutive whole numbers between which the square root of a given whole number from 0 to 100 lies

Words to KNOW!• Perfect square:

a whole number whose square root is a wholeNumber

√25 = 5 makes 25 a perfect square √16 = _____makes 4 a perfect square

• Square root: when you multiply a number by itself, such as 2 x 2,

you get 4, a perfect square. √ 4 = 2.

3x3 = 9 9 is a perfect square. √ 9 = 3

The First 10……Perfect Squares

149

1625

36496481

100If you square these numbers, you will find the

first 10 Perfect Squares

The First 10……Perfect Squares

√1 = 1√4 = 2√9 = 3√16 = 4√25 = 5

√36 = 6√49 = 7√64 = 8√81 = 9√100 = 10

If you square these numbers, you will find the first 10 Perfect Squares

More Perfect Squares…..

√144 = 12

√ 169 = 13

√225 = 15

√400 = 20

Whole numbers? What WHOLE numbers?

You will be asked to determine between which to 2 whole numbers does a number fall when you find the square root.

To do so, simply enter that number in your calculator and press: √ button.

Finding the whole numbers….

√5 = 2.236067…

This number falls between which 2 whole numbers?

2 and 3

Finding the WHOLE numbers…Determine which 2 whole numbers does this square root fall?

√ 13 2 and 3

√ 27 5 and 6

√ 63 7 and 8

√ 11 3 and 3

Perfect Square Roots _______________________

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What have you learned about Perfect Square Roots?

List the first 10 Perfect Squares

HERE