PIZZA PARTY [DAY 4]

DIVIDING FRACTIONS THROUGH QUOTATIVE DIVISION

Explore quotative division of fractions conceptually using the bar model, double number line and ratio table.

Intentionality

Math Talk

Purposeful Practice

Resources & Downloads

Educator Discussion Area

Intentionality & Unit Overview

Length of Unit: 5 Days

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Students will divide fractions through quotative division leveraging a context.

Intentionality…

The purpose of the Day 4 activities is to reinforce key concepts from Days 1, 2 and 3. Students will engage in a string of related problems through a math talk and will have an opportunity to complete independent purposeful practice. The math talk and purposeful practice serve to develop a deeper understanding of the following big ideas:

  • There are two types of division;
  • In quotative division, both the dividend and the divisor have the same unit (pizza and pizza).
  • The divisor is a rate.
  • The quotient can represent the number of parts or iterations of the rate.
  • Quotative division can be accessed through skip counting, repeated addition, repeated subtraction or multiplication;
  • When you scale both the dividend and the divisor by the same factor, the quotient will remain the same.

Math Talk

Present each of the following division statements one at a time. Encourage students to create a quotative division context and a model for each expression and solve. Alternatively, you could build onto a context we have explored from a previous day (pizzas and/or wrapping paper).

9 √∑ 6

3 √∑ 2

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Purposeful Practice

While Students Are Practicing…

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Purposeful Practice: Dividing Fractions

Question #1:

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Question #2:

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Question #3:

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Question #4:

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We suggest collecting this reflection as an additional opportunity to engage in the formative assessment process to inform next steps for individual students as well as how the whole class will proceed.

Resources & Downloads

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Educator Discussion Area

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