Chapter 7 Math Test 2. txt

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Author:
emilybrooke082690
ID:
77108
Filename:
Chapter 7 Math Test 2. txt
Updated:
2011-04-03 23:21:38
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Math
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Description:
Math Test Two Chapter Seven
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  1. Definition of algorithm
    a procedure or specific set of steps that will lead to consistent results
  2. Mental Arithmetic
    • 1. use it
    • 2. when to use it
    • 3. why it works the way it does
  3. Substitution
    • 1. hidden number strategy works because of the Make 10 Strategy
    • 2. 298 + 167 = +2 then -2 from total
    • 3. 35 - 18 = +2 then +2 from total
  4. Problem Solving
    • 1. teacher directed discovery
    • 2. manipulatives has place value characteristics
  5. Story Problem Using Subtraction Questions
    • 1. Tell Story
    • 2. Ask how can we solve this problem
    • 3. What number sentence (helps interpret story)
    • 4. Using your manipulatives, please show me the 66.
    • 5. How many ones are in 66? 6
    • 6. How can I subtract 7 ones? trade/break apart a 10 for 10 ones
    • 7. How many ones do I have now? 16
    • 8. Now, subtract 7 ones.
    • 9. How ones do you have now? 9
    • 10. Now, subtract 2 tens.
    • 11. How many tens do you have? 3
    • 12. What is the answer to the story problem? 39
  6. Story Problem Using Addition Questions
    • 1. Tell Story
    • 2. Ask how can we solve this problem
    • 3. What number sentence (helps interpret story)
    • 4. Using your manipulatives, please show me the 66.
    • 5. Push the number 66 toward the top of your page.
    • 6. Build the 15 below the number 66.
    • 7. Combine the ones.
    • 8. Can all the ones stay together? no
    • 9. Make a trade and place the ten above the other ten.
    • 10. Combine your tens.
    • 11. How many tens? 3
    • 12. How many are there now? 33

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