1. Word cloud
120 seconds
What is the square root of 64?
2. Slide
60 seconds
Understanding Square Root
Square root is the inverse of squaring a number, which means the number that multiplies itself to get the original number. For example, when you square 4, you get 16. The square root of 16 is 4. Square root can also be used to find the length of a side of a right triangle given the other two sides.
3. Slide
60 seconds
square root
Square Root: A number that, when multiplied by itself, gives the original number. For example, the square root of 4 is 2, because 2 multiplied by 2 equals 4.
Radicals: Symbols used to represent square roots. They look like this: √
Simplifying Radicals: When the value inside the radical can be divided evenly by the same number as many times as possible. For example, √64 can be simplified to √4 x √16 which can then be written as 4√16
4. Slide
60 seconds
Did you know?
The square root of a number is also known as its 'principal root'. The smallest number that can be the square root of a number is 0. A square root of a negative number is known as an 'imaginary' number.
5. Open question
300 seconds
What are the steps for finding the square root of a number?
6. Open question
300 seconds
What is the formula for finding the square root of a perfect square?
7. Open question
300 seconds
How can you use the square root of a number in real-life situations?
8. Open question
300 seconds
What strategies can you use to simplify the square root of a number?
9. Drawings
450 seconds
Brain break: Draw a happy sun with sunglasses, holding an ice cream cone in one hand and making a peace sign with the other hand
10. Drawings
1260 seconds
Clues
In pairs: Select one task
Question: A student is trying to find the square root of a number. How can they do it?
The square root of a number is the same as a number multiplied by itself. The square root of a number is the inverse of squaring a number. The square root of a number can be used to calculate the area of a square.
A: Work in pairs to explain how to calculate the square root of a number through a drawing. B: Write an equation that shows how to calculate the square root of a number.
11. Poll
60 seconds
What is the square root of 16?
- 2
- 6
- 4
- 8
12. Poll
60 seconds
What is the square root of 25?
- 5
- 10
- 3
- 7
13. Poll
60 seconds
Which of the following numbers has an exact square root?
- 16
- 27
- 21
- 9
14. Poll
60 seconds
What is the square root of 81?
- 6
- 12
- 7
- 9
15. Poll
60 seconds
Which of the following expressions represents the square root of x?
- √x
- x/2
- x^2
- x+1
16. Open question
180 seconds
Work together in pairs: What is the square root of 64?
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