Common Issues with Linear Equations
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 
A 
Algebra 
CED 
Creating Equations 
2 
Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales. 
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 decontextualizeto 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 Idea  Common CoreUnderstanding TransformationsGrade 912 / Math / GeometryMath.HSG.CO.A.4 / Math.HSG.CO.A.5
 12
 2

Lesson Idea  Common CoreCommon Issues with TransformationsGrade 912 / Math / GeometryMath.HSG.CO.A.4 / Math.HSG.CO.A.5
 8
 6

Lesson Idea  Common CoreDeepening Understanding of TransformationsGrade 912 / Math / GeometryMath.HSG.CO.A.4 / Math.HSG.CO.A.5
 10
 5

Lesson Idea  Common CoreCollaborative Work with TransformationsGrades 912 / Math / GeometryMath.HSG.CO.A.4 / Math.HSG.CO.A.5
 9
 2

Lesson Idea  Common CoreLearning from Mistakes: Linear EquationsGrade 812 / Math / EquationsMath.A.REI.1 / Math.Practice.MP2 / Math.Practice.MP3
 24
 11

Lesson Idea  Common CoreCollaborative Work with Proportional RelationshipsGrade 7 / Math / CollaborationMath.7.RP.A.2 / Math.Practice.MP1
 3

Lesson Idea  Common CoreUnderstanding Proportional RelationshipsGrade 7 / Math / AssessmentMath.7.RP.A.2 / Math.Practice.MP1
 21
 4

Lesson Idea  Common CoreCommon Issues with Proportional RelationshipsGrade 7 / Math / CollaborationMath.7.RP.A.2 / Math.Practice.MP1
 180
 3

Lesson Idea  Common CoreDeepening Understanding: Proportional RelationshipsGrade 7 / Math / AssessmentMath.7.RP.A.2 / Math.Practice.MP1
 27
 2

Lesson Idea  Common CoreReviewing Linear Equations in Two VariablesGrades 812 / Math / AssessmentMath.A.REI.1 / Math.A.CED.2 / Math.Practice.MP2
 10
 4

Lesson Idea  Common CoreDeepening Understanding: Linear EquationsGrades 812 / Math / AssessmentMath.A.REI.1 / Math.A.CED.2 / Math.Practice.MP2
 5
 8
 Lesson Objective
 Solve linear equations in two variables
 Length
 8 min
 Questions to Consider
 Why does Ms. Morehead have the students work on the equations individually and then collaboratively?
 How does Ms. Morehead decide to group students for the collaborative task?
 What do students learn from analyzing another student's work?
 Common Core Standards
 Math.A.REI.1, Math.A.CED.2, Math.Practice.MP2
Teacher & School Info

Susie Morehead
 School Details
 Turkey Foot Middle School Edgewood, KY
 Population
 1,020 students
 District Spending
 $7,416
Supporting Materials

Common Issues with Linear Equations Transcript

MAP Lesson Materials

Ann Shannon's Website

Common Core Math Playlist: Engaging Students with “Productive Struggle”