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Standard. Number Sense 1.3-Round whole number through the millions. Learning Objective. Students will understand when and how to round numbers into the millions. Check for understanding-learning objective. Tom tell Jerry what the objective is Jerry tell Tom what the objective is

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  1. Standard • Number Sense 1.3-Round whole number through the millions

  2. Learning Objective • Students will understand when and how to round numbers into the millions.

  3. Check for understanding-learning objective • Tom tell Jerry what the objective is • Jerry tell Tom what the objective is • Students will understand when and how to round numbers into the millions

  4. Why do we need to know this? • Rounding numbers helps us calculate (figure out a math problem) faster. • Helps us add money up faster

  5. Think • Have you ever rounded a number before? How about with money? • Do you know the rhyme for rounding? • Who can explain how to round a number?

  6. Teacher’s Turn • First you get the place value in sight • Then you check the neighbor to the right • 5 or more • you raise the score • 4 or less • you let it rest 1 2 3 45 6 7 8 9

  7. Teacher’s Turn • Get the place value in sight-underline it! It could be in the tens, hundreds, thousands or millions • Check the neighbor to the right • 5 or more you raise the score • 4 or less you let it rest 1 2 3 45 6 7 8 9

  8. Get the place value in sight-underline it! It could be in the tens, hundreds, thousands or millions Check the neighbor to the right 5 or more you raise the score 4 or less you let it rest 2 3 45 6 7 8 9 Round to the nearest ten thousands 32,098,453 ___________________ 452,973,024 ___________________ 93,235,197 __________________

  9. Get the place value in sight-underline it! It could be in the tens, hundreds, thousands or millions Check the neighbor to the right 5 or more you raise the score 4 or less you let it rest 2 3 45 6 7 8 9 Round to the nearest ten millions 32,098,453 ____________________ 452,973,024 ___________________ 93,235,197 ____________________

  10. Check for Understanding-What did you learn? • 2 3 45 6 7 8 9

  11. Paaarty!!-Knock, Knock You need to get the place value in sight. That number with all the numbers before it go into the house. Numbers to the right are at the door. “Knock, knock.” “Who’s there?” Say number at the door then.. “Are you 5 or more?” If yes “Welcome to party!!” If No “ Your to young!! Get out of here!” 1) 74,5299 2) 317, 222 3) 1,275,204 4) 23,321,564 5) 621,076,925

  12. Show me what you can do! 1 2 3 45 6 7 8 9

  13. Round to the underlined number • Look at the number that is underlined. • Look to the neighbor on the right, 5 or more raise the score, 4 or less let it rest. • 1. 48,433 2. 929,813 • 3. 8,715,990 4. 31,545,026 • You try! • 5. 63,091,219 6. 1,999,999

  14. Just do it! • Remember your poem or Knock, Knock • Round to the nearest ten, hundred, thousand, ten thousand, and hundred thousand • Page 15 numbers 11-14 • Round each number to the underlined place. • Page 16 numbers 18-21

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