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A1262289998GLeQa
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An alternative method of division. Division with Remainder. What does it mean to have a remainder? ... Finish pages 1 - 15 in your class notes packet. ... – PowerPoint PPT presentation
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Title: A1262289998GLeQa
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An alternative method of division
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Division with Remainder
- What does it mean to have a remainder?
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Mathematical language
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Exploration 3.19The Scaffolding Algorithm
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The standard (familiar) division algorithm
- gazinta
- Do these division problems using the base 10
blocks. - 295 13
- 1425 7
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- Now do the following problems with pictures of
the blocks. Include explanations of your steps. - 7505 19
- 4953 64
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Mental Division
- Some are easier to do in our heads than others
- 6000/30
- How about 152 divided by 8?
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Simplify
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Rules for order of operations
- Please parentheses from inside out
- excuse exponents
- my Dear multiplication and
- division from left to right
- Aunt Sally addition and
- subtraction from left to right
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Rules for order of operations
- Why do we have the rules?
- Where did the rules come from?
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Order of operations
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For Friday
- Finish pages 1 - 15 in your class notes packet.
- This will count as a project grade, not a
homework grade. - For each question, be sure to explain both how
the student answered the question, and why the
mathematics is appropriate. - The length of the answer is not what is
important it is the quality of the explanation. - You also have some reading and problems from the
textbook on section 3.4.
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Division with manipulatives
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