1. Word cloud

120 seconds

What is a decimal?

2. Slide

60 seconds

Decimals are numbers with one or more digits after the decimal point, such as 3.25. Decimals can represent fractions, like 0.75 which equals 3/4. To compare decimals, look at the numbers to the right of the decimal point.

Introducing Decimals

3. Slide

60 seconds

Place Value: The position of a digit in a number determines its value. For example, in the number 456.8, the 8 is in the tenths place, so it is worth 0.8. Rounding: The process of replacing a number with an approximate value that is easier to use. For example, the number 5.876 can be rounded to 5.9. Equivalent Forms: The same value expressed in different forms. For example, 0.75 can be written as the fraction 3/4 or the decimal 75/100.

Concepts:

4. Open question

300 seconds

What are some real world examples of decimals?

5. Open question

300 seconds

How can decimals be used to represent fractions?

6. Open question

300 seconds

How can understanding decimals help you in everyday life?

7. Open question

300 seconds

What strategies can you use to help you understand decimals better?

8. Drawings

450 seconds

Brain break: Draw a goofy penguin balancing an ice cream cone on its head

9. Poll

60 seconds

Which of the following is a decimal number?

- 2+3i
- 0.5
- 5/6

10. Poll

60 seconds

What does the decimal point represent in a decimal number?

- Separates the whole number from its fractional part
- Indicates multiplication
- Indicates addition

11. Poll

60 seconds

How would you read the decimal number 0.75?

- Seven fifths
- Seven and five tenths
- Seventy-five hundredths

12. Poll

60 seconds

What is the place value of 4 in the decimal number 3.426?

- Hundredths
- Thousandths
- Tenths

13. Poll

60 seconds

Which fraction is equivalent to the decimal number 0.2?

- (1/2)²
- 1/5
- 1/10

14. Open question

180 seconds

Work together in pairs: Q: How can you use decimal notation to represent fractions?

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