## HOT CHOCOLATE [DAY 5]

### MULTIPLICATION & PROPORTIONAL REASONING

Explore proportional relationships through skip counting, repeated addition, multiplication, and more.

## Intentionality & Unit Overview

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Students will explore the idea of scaling in tandem with a ratio as a composed unit.

## Intentionalityâ€¦

The purpose of the Day 5 activities is to reinforce key concepts from Days 3 & 4. 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:

• Unitizing;
• Ratio reasoning through scaling in tandem;
• The relationship between repeated addition and multiplication;
• The relationship between multiplication and division, particularly quotative division;
• A composed unit is one way of defining the relationship that exists in a ratio; and,
• The distributive property of multiplication over addition and over subtraction.

## String of Related Problems

Here is the string of related problems for this math talk:

10 x 7

9 x 7

8 x 7

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You might consider recording student thinking on a number line.

### Facilitator Notes

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## Working With Ratios: Ratio Tables

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## Educator Discussion Area

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