Magnitude estimates

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Magnitude Estimates

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Magnitude estimates

  1. 1. Making Magnitude Estimates (universal experience or sub-skill): { Rounding and estimating using powers of 10CFU:What are we going to do today?What are we going to (skill)?
  2. 2. (universal experience or sub-skill):  We already know how to count by tens, hundreds, and thouands. Let’s practice.  We already know how to round to the nearest 10, 100, or 1,000.  Let’s practice: 47, Activate Prior Knowledge(APK)CFU (include connection to LO)
  3. 3.  Look to the place  Mark the space  Go to the right  Start the fight  0 to 4, dont change the score  5 to 9, increase the lineRounding Poem Round 4,769 to the nearest hundred: 4,769
  4. 4. Magnitude Estimate: a rough estimate. It tells whether the answer should be in the 10’s, 100’s, 1,000’s, and so on.Frontload Vocabulary
  5. 5.  Step 1: look to the largest place value of each number  Step 2: What place values are they in?  Step 3: Add the two largest numbers together  Step 4: What place value are they in?  The answer is your magnitude estimate.Practice on Journal page 45 Magnitude Estimates for CFU Addition and Subtraction
  6. 6.  Step 1: Round both factors to the nearest multiple of a power of 10 Step 2: Find the product of the rounded numbers The answer is your magnitude estimate.Practice on journal page 47 Magnitude Estimates forCFU Multiplication and Division
  7. 7.  Where would this skill be helpful in real life? ImportanceCFU:Does anyone else have any other reason as to why it is important? Whichreason is most important to you? Why? You can give me my reason or your
  8. 8. (steps or processes) Skill DevelopmentCFU (strategic)
  9. 9. (steps or processes)Guided Practice
  10. 10. (Concept, Skill, Importance-pair-share)Closure
  11. 11. Independent Practice

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