Reflection: Coherence Powers of Ten: Review and Practice and Writing Clear Explanations - Section 2: A quick reviewof powers of 10 in multi-digit algorithms


The Educreations Video shows some interesting discussion and clearly demonstrates student's level of understanding. I thought the discussion about 5 x 10 and 10 x10x10x10x10 was invaluable. Their faces were intense and showed their thought process as we discussed a lot. I talked about everyday use of powers of 10, figuring out wrong answers, and explanations because I want them to appreciate learning how this skill sharpens their number sense.  Common Core emphasizes this in its design. Their questions and their realization in that short clip was so exciting.

  Appreciation of Math Skills
  Coherence: Appreciation of Math Skills
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Powers of Ten: Review and Practice and Writing Clear Explanations

Unit 13: Multiplication Unit
Lesson 12 of 19

Objective: SWBAT write a clear explanation of the process of accurately finding powers of ten in a standard algorithm while demonstrating their knowledge of place value.

Big Idea: Students will review powers of ten and learn to write clearly about the process after they identify the wrong answers from three given algorithms.

  Print Lesson
Math, Number Sense and Operations, powers of ten, multiplication of 10s
  45 minutes
writing an explanation about powers of
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