This document outlines notes from a math lesson on ratios of fractions and unit rates. It includes the aim of the lesson, solutions to previous problem sets, examples of converting fractions to ratios of hours to minutes, and methods for solving word problems about rates. The lesson covered complex fractions, unit rates, and applying different strategies like using equations, drawings, or number lines to find rates.

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Homework:
None
Sept. 24th
Module 1, Lesson 11
Aim: Ratios of Fractions and Their Unit Rates
DO NOW:
Exam 1 Friday 10/3
Exit Ticket for Lesson 10

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Problem Set 10 solutions S.42

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Problem Set 10 solutions S.42

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Problem Set 10 solutions S.43

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Problem Set 10 solutions S.44

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Opening Exercises S.45

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Complex Fractions
Can be re-written as the division of the two fractions.
a
bc
d
= a
b
c
d

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S.45

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What fraction of an hour is
10 minutes?
15 minutes?
20 minutes?
30 minutes?
45 minutes?
1
2
3
4
7 6 5
10
8
9
11 12

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Method 1 (using equations):
That Izzy and Julia ran at a constant rate.

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Method 2 (drawing a picture):

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Method 3 (double number line):
*How do you find the value of a 5 minute time increment? What are you
really finding?
*Why were 5 minute time increments chosen?
*What if the times had been 24 and 32, or 18 and 22?

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S.46

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S.46

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S.47

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Closing