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?
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