Essential Questions:
Why is it that solving equations is such a powerful problem solving tool?
Why learn to solve them?
Big Ideas:
Algebra is the most powerful tool ever invented. Learn to use it's power.
Unit 1 instructional time is focused on these power standards:
8.EE.C.7: Solve linear equations in one variable.
8.EE.C.7.A: Give examples of linear equations in one variable with one solution, infinitely many solutions, or no solutions. Show which of these possibilities is the case by successively transforming the given equation into simpler forms, until an equivalent equation of the form x = a, a = a, or a = b results (where a and b are different numbers).
8.EE.C.7.B: Solve linear equations with rational number coefficients, including equations whose solutions require expanding expressions using the distributive property and collecting like terms.
Unit 2 instruction will be supported by these standards:
8.G.C.9 Know the formulas for the volumes of cones, cylinders, and spheres and use them to solve realworld and mathematical problems.
Why is it that solving equations is such a powerful problem solving tool?
Why learn to solve them?
Big Ideas:
Algebra is the most powerful tool ever invented. Learn to use it's power.
Unit 1 instructional time is focused on these power standards:
8.EE.C.7: Solve linear equations in one variable.
8.EE.C.7.A: Give examples of linear equations in one variable with one solution, infinitely many solutions, or no solutions. Show which of these possibilities is the case by successively transforming the given equation into simpler forms, until an equivalent equation of the form x = a, a = a, or a = b results (where a and b are different numbers).
8.EE.C.7.B: Solve linear equations with rational number coefficients, including equations whose solutions require expanding expressions using the distributive property and collecting like terms.
Unit 2 instruction will be supported by these standards:
8.G.C.9 Know the formulas for the volumes of cones, cylinders, and spheres and use them to solve realworld and mathematical problems.
What to TeachPerquisite Skills from 7th grade

Lesson Ideas 
Student PracticeEngageNY student practice
One step equations worksheet Two step equations worksheet Math Playgroundone step equations IXL.com

Topic 1: Multistep Equations

Ditch Diggers3 Acts math by Dan Meyer
Multistep equations lesson plan from Howard County Web resources for 8.EE.7a Solving EquationsIllustrative Mathematics task The Sign of the SolutionIllustrative Mathematics task Discount or CouponIllustrative Mathematics task Sammy's Chipmunk and Squirrel ObservationsIllustrative Mathematics task 
vocabularyaltitude
base coefficient cones constant cylinders distribute equation equivalent expression height infinitely many inverse operation isolate justify length like terms linear Pi pyramid radius shperes solution substitute surface area variable volume width AssessmentPre Assessment
Real World Experience Post Assessment Formative Assessment 
Unit resources 
Learn the mathParent Letter 