This unit on arithmetic reasoning was carefully crafted to allow students to refine their understandings around numeric expressions by relating them to visual models/representations to build conceptual understanding. The unit presents an opportunity to apply and transfer these understandings of numerical expressions to a new situation which requires variable expressions to describe the solution. Students are asked to deal with variable expressions in a more abstract way. Unit developed by Audra McPhillips using the Common Core Lesson Template (included). Aligned to CCSS: 6.EE.2, 6.EE.3, 6.EE.4
Arithmetic Understandings & Variable Expressions
Subject
Math — Expressions and Equations
Grade Level
Grades 6-8
Resource Type
Handout, Lesson Plan, Presentation
Standards Alignment
Common Core State Standards
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Write, read, and evaluate expressions in which letters stand for numbers.
Apply the properties of operations to generate equivalent expressions.
Identify when two expressions are equivalent (i.e., when the two expressions name the same number regardless of which value is substituted into them).
I'll be using this in my class soon. What a fantastic way to get kids tuned into equivalent expressions. The visual element really brings the concept home. Thanks for the hard work.
mikewa
November 13, 2013
Fabulous lesson and resources. This really spells out the lesson step by step. Beautiful work!
jfkiser1
July 26, 2013
