1. Open question

180 seconds

What societal challenges can be solved by understanding the concept of square root?

2. Word cloud

120 seconds

What is the square root of 4?

3. Slide

60 seconds

A square root is a number that when multiplied by itself gives you the original number. For example, the square root of 9 is 3, because 3x3 = 9. To find the square root of a number, you can use a calculator or do a math problem.

What is a Square Root?

4. Slide

60 seconds

Square Root: The square root is the number that when multiplied by itself, results in the given number. For example, the square root of 25 is 5 because 5 multiplied by itself is 25. Radicand: The radicand is the number underneath the radical sign (√) in a square root equation. For example, in the square root of 25, 25 is the radicand. Perfect Square: A perfect square is a number that can be written as a square of an integer. For example, 16 is a perfect square because it can be written as 4² which is 4 times 4.

Concepts:

5. Slide

60 seconds

The symbol for square root, '√', was first used in print in 1525 in a book by Christoff Rudolff. The number '4' is the only number that is both a square (2x2) and a cube (2x2x2). The square root of a negative number is called an 'imaginary number'. Imaginary numbers are used to solve equations that have no real solutions.

Did you know?

6. Open question

300 seconds

What is the square root of 16?

7. Open question

300 seconds

What is the square root of a negative number?

8. Open question

300 seconds

What did you learn about square roots?

9. Open question

300 seconds

How can you use square roots in real life?

10. Drawings

450 seconds

Brain break: Draw a monster with ten eyes, three noses, and one big funny-toothed mouth.

11. Drawings

1260 seconds

Question: You are a math teacher and your student needs help understanding how to find the square root of a number. How do you explain it to them? Clues: • Remember that the square root is the number that when multiplied by itself, results in the original number. • Visualizing the problem can help. Draw a square with the number in the corner and the square root in the other corner. • Think of the square root as how many times you would need to multiply the number by itself to get the original number. In pairs: Select and solve one of the tasks: A. Work in pairs to generate an explanation for the student using the clues and a drawing. B. Write an essay explaining the square root in detail and provide an example of how to find it.

12. Poll

60 seconds

What is the square root of 25?

- 5
- 10
- 15
- 20

13. Poll

60 seconds

What is the square root of 144?

- 12
- 14
- 16
- 18

14. Poll

60 seconds

What is the value of square root 49?

- 7
- 9
- 11
- 13

15. Poll

60 seconds

What is the value of square root 81?

- 9
- 8.5
- 8.2
- 10

16. Poll

60 seconds

Find the positive solution to x^2 = 49.

- 7
- -7
- 1

17. Open question

180 seconds

Work together in pairs: What is the square root of 64?

Made with ❤️ from Norway