Recognizing Linear Functions
Common Core State Standards
Math 
Math 
8 
Grade 8 
EE 
Expressions & Equations 
C 
Analyze and solve linear equations and pairs of simultaneous linear equations 
8 
Analyze and solve pairs of simultaneous linear equations. a. Understand that solutions to a system of two linear equations in two variables correspond to points of intersection of their graphs, because points of intersection satisfy both equations simultaneously. b. Solve systems of two linear equations in two variables algebraically, and estimate solutions by graphing the equations. Solve simple cases by inspection. For example, 3x + 2y = 5 and 3x + 2y = 6 have no solution because 3x + 2y cannot simultaneously be 5 and 6. c. Solve realworld and mathematical problems leading to two linear equations in two variables. For example, given coordinates for two pairs of points, determine whether the line through the first pair of points intersects the line through the second pair. 
Download Common Core State Standards (PDF 1.2 MB) 

COMMON CORE CHALLENGEDebrief: Recognizing Linear FunctionsGrade 8 / Math / Common CoreMath.8.EE.C.8

Lesson Idea (Common Core)Experimenting with STEM: The Barbie Bungee JumpGrades 68 / Math / EngineeringMath.8.EE.C.8c / Math.8.SP.A.1 / Math.8.SP.A.2
 145
 25

Lesson IdeaModeling Expressions and EquationsGrade 912 / Math / Algebra
 71
 3

Lesson Idea (Common Core)Conjecturing About FunctionsGrades 68 / Math / ReasoningMath.8.F.B.4 / Math.Practice.MP2 / Math.Practice.MP3
 79
 31

Lesson Idea  Common CoreCommon Issues with Linear EquationsGrades 812 / Math / ReasoningMath.A.REI.1 / Math.A.CED.2 / Math.Practice.MP2
 16
 3

Lesson Idea  Common CoreDeepening Understanding: Linear EquationsGrades 812 / Math / AssessmentMath.A.REI.1 / Math.A.CED.2 / Math.Practice.MP2
 5
 8

Tch SpecialTrue or False Equation Routine: Third GradeGrade 3 / Math / Tch DIYMath.3.OA.B.5 / Math.Practice.MP7
 50
 1

Lesson IdeaCollaborative Memory in MathGrades 68 / Math / Collaboration
 10
 2
Objective
Understand that the point of intersection of two linear equations is a solution that satisfies both equations in the system and that equations that yield parallel lines have no solution
Length
17 min
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Teacher & School Info

William McKinney
 School Details
 Wilbur Cross High School New Haven, CT
 Population
 1,238 students
 District Spending
 $15,978
Supporting Materials

Workbook for Recognizing Linear Functions

Debrief Video: Recognizing Linear Functions

SAP Instructional Practice Guide for Math, High School
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COMMON CORE CHALLENGE Recognizing Linear Functions
Grade 8 / Math / Common Core