Jeff Li MTP KIPP Infinity Charter School, NEW YORK, NY
8th Grade Math : Unit #5 - SYSTEMS OF LINEAR EQUATIONS : Lesson #11

Elimination 5 - mulitply both equations

Objective: SWBAT solve systems linear systems of equations by elimination – multiply both equations.
Standards: 8.EE.C.8 8.EE.C.8a 8.EE.C.8b MP2 MP6 MP7
Subject(s): Math
60 minutes
1 Warm-up - 10 minutes

WU70 Elimination 5  reviews solving systems of equations by graphing. 

Warm-up problems also sometimes extend lessons that students have encountered before to more unfamiliar contexts. For a video narrative about how I structure each lesson, and how the warm-up fits in, click here.

2 Play of the Day - 40 minutes
5 - 11 POTDVN70 Elimination 5 - multiply both equations.MOV
https://betterlesson.com/lesson/section/5678/elimination-5-mulitply-both-equations
3 Huddle - 10 minutes
5 - 11 HVN70 Elimination 5 - multiply both equations.MOV
https://betterlesson.com/lesson/section/5679/elimination-5-mulitply-both-equations
resources
5 - 11 POTD70 Elimination 5 - multiply both equations.pdf
https://betterlesson.com/lesson/resource/2594324/5-11-gold-problem-pdf
4 Homework - 15 minutes

5 - 11 HW70 Elimination 5 includes problems related to this lesson, four from this unit and one review problem.  I also give the kids the answers to the problems.