## Reflection: Routines and Procedures Expressing Solutions Quantitatively - Section 3: Explain

For this lesson I make sure to help students see that they are just learning how to plug and chug with a new set of equations.  It is important for me to do this with my students so that they are not intimidated with the new equations and realize that if they use the same routine that they have been doing all year that they can easily solve these problems too.

I tell them how they are going to continue to problem solve using the same routine that we have been doing all year:

1. underline what you know
2. circle what you want
3. figure out how you will get there (equation or equivalence statements)
4. isolate your variable
5. Plug and chug to get your answer.

Here is a video showing me doing this with my students.

Routines and Procedures: Problem Solving

# Expressing Solutions Quantitatively

Unit 7: Unit 8: Water Quality
Lesson 4 of 11

## Big Idea: Solutions can be expressed quantitatively by using parts per million, Molarity, percent composition, and density.

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83 minutes

### Rachel Meisner

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