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Decimals

Decimals. How can your understanding of place value and fractions help you understand decimals?. 5 minutes to Drain your Brain! Write EVERYTHING you know about FRACTIONS Write EVERYTHING you know about PLACE VALUE. Share Out. Fractions. Place Value. Task 1- I do!. .7 or .70.

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Decimals

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  1. Decimals How can your understanding of place value and fractions help you understand decimals?

  2. 5 minutes to Drain your Brain! • WriteEVERYTHINGyou know about FRACTIONS • WriteEVERYTHINGyou know about PLACE VALUE

  3. Share Out Fractions Place Value

  4. Task 1- I do! .7 or .70 Use the hundreds blocks to represent the fraction 7/10. Write it as a decimal. 1 Hundredth (.01) 1 tenth (.1) 1 whole . 0 0 0 7

  5. Task 2 – I do! 2.15 Use the hundreds blocks to represent the fraction 215/100. Write it as a decimal. 1 Hundredth (.01) 1 tenth (.1) 1 whole . 2 0 0 1 15 5

  6. Task 3 – We do! Use the hundreds blocks to represent the fraction 72/100. Write it as a decimal. 1 Hundredth (.01) 1 tenth (.1) 1 whole

  7. Task 3 – Few do! Task 4 Use the hundreds blocks to represent the fraction 643/100. Write it as a decimal. Use the hundreds blocks to represent the fraction 4 3/10. Write it as a decimal. Task 5 Use the hundreds blocks to represent the fraction 99/100. Write it as a decimal. 1 Hundredth (.01) 1 whole 1 tenth (.1)

  8. Decimals How can your understanding of place value and fractions help you understand decimals?

  9. Task 6 – You do! Task 7 – You do! Use the information in the picture below to: Write a fraction Write a decimal Use the number below to: Write a fraction Draw an illustration .5

  10. Answers 7 36 100 Task 6 . 6 3 7 Task 7 5 10

  11. Drop back and punt Use you transparency to figure out the following: 15 100 Write it as a decimal! .

  12. Task 1 – I do! Use you transparency to figure out the following: 70 100 Write it as a decimal! How does this compare to tenths? . 0 7 0

  13. Task 2 – I do! Use you transparency to figure out the following: 22 100 Write it as a decimal! How does this compare to tenths? . 0 2 2

  14. Task 3 – Few do! Use you transparency to figure out the following: • 20 • 100 • 50 • 100 • 62 • 100 • 84 • 100 Write them as a decimal! How do they compare to tenths? . 0 2 2

  15. You Do – Challenge! Show a pictorial representation of the following word problem. To assist you, you may use: Your transparency Manipulatives A place value chart Norman and Dianna are so confused. They want to know how much of the banana their mother ate. Mama gave Norman seven tenths of a banana and Dianna got five tenths. Greedy mama ate the rest. How many tenths did she eat? *hint find out how many bananas Norman and Dianna ate Mama ate eight tenths. Norman and Dianna ate 1 2/10 bananas. That means mama had to cut 2 bananas. There were eight tenths remaining.

  16. Decimals How can your understanding of place value and fractions help you when comparing decimals?

  17. ReadThinkWrite Whatdoesitmean tocompareinmathematics? THINK Write

  18. I Do! Compare twelve hundredths to two tenths < .12 .20 . 1 2 . 0 2

  19. I Do! Compare five and three tenths to five and thirty hundredths = 5.30 5.30 . . 3 0 5 0 3 5

  20. I Do! Compare six and twenty five hundredths to four and six tenths > 6.25 4.60 . . 2 5 6 0 6 4

  21. We Do! Compare fourteen hundredths to one tenth > .14 .10 . . 1 4 0 1

  22. Few Do! Task 1 Compare thirty two hundredths to fourteen tenths Task 2 Compare seven and four tenths to seven and forty two hundredths .32 < 1.40 7.40 < 7.42 Task 4 Compare 2/10 to .2 Task 3 Compare seventy hundredths to fifty two hundredths .2 = .2 .70 > .52 Task 6 Compare seven and thirty four hundredths to 7 36/100 Task 5 Compare four and seven tenths to four and four tenths 4.7 > 4.4 7.34 < 7.36

  23. You Do! Createonedecimalcomparisontousefortomorrow’sAPK!

  24. Try this on for size! • Solve the following problem using two representations. • Representation 1: Number line • Representation 2: Your choice! Shelby was measuring the width of a paperclip and found that it was 1/2 inch. What decimal is equivalent to width of the paperclip?

  25. Share Out

  26. Math Stations

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