## Reflection: Modeling Writing Equations to Solve Rate Problems - Ratios of Fractions - Section 1: Introduction

My students are taking unit assessments this entire week.  The testing block is the first two hours in the morning.   Today my students took a difficult test for English Language Arts.  By the time they got to me, they were worn out.  In addition, regular class times are shorter during this week of testing.

I think the structure of the lesson is not the best fit for a day when students will be cognitively tired.  One thing that helped though is to be even more explicit in the modeling how to write an equation in the form y = mx.  My students have done fairly well with unit rates of complex fraction ratios.  I had to explicitly ask them to find this value first, we called it m, and then write it into the equation.  The lesson as written assumes students will do this first without actually being told.

Hard Lesson for a Test Day
Modeling: Hard Lesson for a Test Day

# Writing Equations to Solve Rate Problems - Ratios of Fractions

Unit 3: Proportional Relationships II
Lesson 6 of 8

## Big Idea: Writing and solving equations is a useful tool for solving rate problems.

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Standards:
Subject(s):
Math, Number Sense and Operations, Fractions, Unit Rates, unit rates of fraction ratio, equations of proportional relationships
50 minutes

### Grant Harris

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