Q2W13 Algebra

Teacher Carol Barnes Algebra 7th/8th Q2W13 Nov 8-12 Unit 5: Systems of Equations
Standard(s) Taught

MAFS.912.A-REI.3.6  Solve systems of linear equations exactly and approximately (with graphs), focusing on pairs of linear equations in two variables.

MAFS.912.A-REI.3.5  Prove that given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions.

MAFS.912.A-REI.3.5  Prove that given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions.

Learning Targets and Learning Criteria

• recall that equivalent equations result when an equation is multiplied by the same number on both sides of the equal sign.

• prove that replacing one equation with the sum of that equation and a multiple of the other creates a system with the same solutions as the original system.

Classroom Activities

Monday/Tuesday

Whole Group:  Take notes on Solving System of Equations by Substitution.    Systems of Equations Substitution Notes

Small Group:  Complete problems on back of note page with table partners.

Independent:  Khan Academy- Solving Systems of Equations with Substitution

Wednesday

Whole Group:  Review solving systems of equations by graphing and substitution.

Small Group:  Partners will complete heart activity, I Love System of Equations. Unit 5 – Systems of Equations and Inequalities

Friday

Whole Group:  Demonstrate graphing systems of equations by x- and y-intercepts. Take notes and practice solving System of Equations by Elimination. Systems of Equations Elimination Notes

Small Group:  Partners will complete practice problems on the back of notes.

Independent:  Khan Academy-Solving System of Equations by Elimination.

Assignments Due

Khan Academy- Solving Systems of Equations by Substitution and Solving Systems of Equations by Elimination.