# Learning from Mistakes: Linear Equations

Grade 8-12 / Math / Equations
CCSS: Math.A.REI.1 Math.Practice.MP2 Math.Practice.MP3

Common Core State Standards

 Math Math A Algebra REI Reasoning with Equations and Inequalities 1 Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method. Download Common Core State Standards (PDF 1.2 MB)

Common Core State Standards

 Math Math Practice Mathematical Practice Standards MP2 Reason abstractly and quantitatively. Mathematically proficient students make sense of quantities and their relationships in problem situations. They bring two complementary abilities to bear on problems involving quantitative relationships: the ability to decontextualize--to abstract a given situation and represent it symbolically and manipulate the representing symbols as if they have a life of their own, without necessarily attending to their referents—and the ability to contextualize, to pause as needed during the manipulation process in order to probe into the referents for the symbols involved. Quantitative reasoning entails habits of creating a coherent representation of the problem at hand; considering the units involved; attending to the meaning of quantities, not just how to compute them; and knowing and flexibly using different properties of operations and objects. Download Common Core State Standards (PDF 1.2 MB)
Lesson Objective
Work in small groups to analyze student work samples
Length
3 min
Questions to Consider
What do students learn from collaboratively viewing student work samples?
How would you decide to group the students for this activity?
Why is it important for the groups to have guiding questions for the activity?
Common Core Standards
Math.A.REI.1, Math.Practice.MP2, Math.Practice.MP3