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Place Value in K-2

Place Value in K-2. Come in and get started on a worksheet sheet on your table!. February 7, 2019. Base-Spoon Numbers. Big Idea: The base ten numeration system is a scheme for recording numbers using digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 , groups of ten, and place value.

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Place Value in K-2

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  1. Place Value in K-2 Come in and get started on a worksheet sheet on your table! February 7, 2019

  2. Base-Spoon Numbers Big Idea: The base ten numeration system is a scheme for recording numbers using digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9, groups of ten, and place value. It’s not as easy as you remember! One thing students will do is use the “say ten way”: 12 is “one-ten-two” 54 is “five-ten-four”

  3. Types of Tools

  4. The choice of particular tools and representations intentionally builds understanding of place value and 10 as a unit of 1 ten. Quick-Ten 5-group column Place Value Chart Ten-frames

  5. 1st Grade Strategies: Add on, Make 10 Arrow Method

  6. 1st Grade Strategies: 10s and 10s, 1s and 1s First graders will learn that we bundle, or compose a ten from 10 ones, when we add this way. 1st Grade Multi-digit Subtraction: Multiples of 10 from multiples of 10

  7. Try It Show with the arrow method and drawing a model of tens and ones. 57 + 28 60 – 40

  8. 2nd Grade Strategies: Arrow Method 324+147 91-24 124-83 (We can think of 124-80 as 12 tens – 8 tens)

  9. 2nd Grade Strategies: 10s and 10s, 1s and 1s 324 +147 354-143 124-83

  10. 2nd Grade Strategies: Compensation

  11. Place Value Chart 74 + 38 Careful! We’ll get there eventually but other strategies help us understand numbers more.

  12. Place Value Chart with subtraction 105 – 42

  13. Try It Show with the arrow method and use any model of tens and ones. 357 + 262 521 – 253

  14. Thank you! Please fill out a feedback form. More questions? brust@communityroots.org Looking for more tips for work at home? Go to www.communityroots.org/math and click on the first link.

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