Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.

Assessed with:
MAFS.912.ACED.1.2
 Test Item #: Sample Item 1
 Question:
The system has the solution (3,1) where F,G,H,P,Q and R are nonzero real numbers.
Select all the systems that are also guaranteed to have the solution (3,1).
 Difficulty: N/A
 Type: MS: Multiselect
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Formative Assessments
Lesson Plans
Perspectives Video: Professional/Enthusiast
Tutorials
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MFAS Formative Assessments
Students are asked to show that, given a system of two equations in two variables, replacing one equation with the sum of that equation and a multiple of another produces a system with the same solutions.
Students are given a system of two linear equations and asked to form a new system by replacing one equation with the sum of that equation and a multiple of the other. Then students are asked to explain why the two systems have the same solution.
Student Resources
Tutorials
This video is an example of solving systems by elimination where the system has infinite solutions.
Type: Tutorial
This video shows how to solve a system of equations through simple elimination.
Type: Tutorial
This video explains how to identify systems of equations without a solution.
Type: Tutorial
This video shows how to solve systems by elimination.
Type: Tutorial
This video is an introduction to the elimination method of solving a system of equations.
Type: Tutorial
This video demonstrates solving a system of equations word problem using elimination.
Type: Tutorial
This tutorial shows how to solve a system of equations using substitution.
Type: Tutorial
This video tutorial discusses how to create a system of equations.
Type: Tutorial
Video/Audio/Animation
This chapter presents a new look at the logic behind adding equations the essential technique used when solving systems of equations by elimination.
Type: Video/Audio/Animation