## Reflection: Discourse and Questioning Working with Expressions and Equations Part 2 - Section 3: Partner Practice

Some students struggled to generate an expression for problem one.  Some students wrote “r + u” while other students wrote “8ru”.  In each scenario, I asked students how much money the farm would generate if 10 people came on Saturday and 20 people came on Sunday.  Students were able to multiply and add to find the total amount.  Then I asked them what they would get if they substituted 10 in for r and 20 in for u in their own expression.  Students saw that they were not equivalent.  I encouraged them to create an expression that modeled what they had just done to calculate the total amount of money collected.

Struggles with #1
Discourse and Questioning: Struggles with #1

# Working with Expressions and Equations Part 2

Unit 6: Expressions, Equations, & Inequalities
Lesson 3 of 20

## Big Idea: Students use substitution to find the values of equations and expressions they wrote using appropriate math symbols.

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Standards:
Subject(s):
Math, Algebra, Expressions (Algebra), Geometry, Graphing (Algebra), 6th grade, master teacher project, equation
60 minutes

### Andrea Palmer

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