Estimating Square Roots on a Number Line

What is the main topic of today's lesson?

• Graphing linear equations

• Solving quadratic equations

• Calculating cube roots

• Estimating square roots on a number line

What is a perfect square?

• A number that is a multiple of 10

• A number that is the product of a number multiplied by itself

• A number that is divisible by 2

• A number that is a prime number

What is the square root of 196?

• 15

• 14

• 13

• 12

Which of the following is NOT a perfect square?

• 16

• 36

• 25

• 30

What is the first step in estimating the square root of a number?

• Finding its decimal form

• Determining the consecutive integers it falls between

• Using a calculator

• Plotting it on a number line

Between which two integers does the square root of 8 fall?

• 3 and 4

• 2 and 3

• 4 and 5

• 1 and 2

Approximately where does the square root of 8 fall on the number line?

• Closer to 2

• Exactly in the middle of 2 and 3

• Exactly at 3

• Closer to 3

What is the approximate decimal value of the square root of 8?

• 2.6

• 2.5

• 2.8

• 2.7

Between which two integers does the square root of 135 fall?

• 10 and 11

• 11 and 12

• 12 and 13

• 13 and 14

What is the approximate decimal value of the square root of 135?

• 11.7

• 11.6

• 11.4

• 11.5