Lesson 6: Review and Assess
Duration of Days: 2
Lesson Objective
Students will be able to synthesize and demonstrate comprehensive mastery of solving multi-step linear equations in one variable (incorporating rational coefficients, the distributive property, and collecting like terms) and classifying equations by their number of solutions.
When reviewing a complex, multi-step equation, what structural clues help you plan your sequence of simplification steps?
How can you mathematically prove that a linear equation has no solution versus infinitely many solutions during a review check?
Why is substituting your final answer back into the original equation the most reliable way to verify your work during an assessment?
Identity: An equation with infinitely many solutions where both sides are structurally identical (e.g., a=a).
Contradiction: An equation with no solution where the variable terms cancel out, leaving an untrue statement (e.g., a=b).
Linear Equation, Rational Coefficient, Distributive Property, Like Terms, Inverse Operations, Balance.
8.EE.C.7: Analyze and solve linear equations and pairs of simultaneous linear equations.
8.EE.C.7.A: Give examples of linear equations in one variable with one solution, infinitely many solutions, or no solutions.
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.
Description: A cumulative 2-day block wrapping up Unit 3. Day 1 features a collaborative, stations-based review focusing on error analysis and fraction-clearing strategies. Day 2 is the formal Unit 3 Summative Assessment.
Purpose: To consolidate algebraic reasoning skills, resolve lingering computational misconceptions, and evaluate individual student mastery of single-variable linear equations before transitioning to functions and graphing.
DOK Level: 3 (Strategic Thinking) — Students must evaluate, select, and justify their mathematical pathways during the review phase.
Clearing vs. Partial Multiplying: Forgetting to distribute the LCD to constant terms when clearing fractions from an equation.
The x=0 Misinterpretation: Confusing an equation that simplifies down to a value of zero with a "No Solution" designation, instead of realizing that zero is a single, valid coordinate value.
Choice Board Review: Students select from tiered review pathways (algorithmic practice, real-world modeling tasks, or a "Become the Grader" error analysis grid).
Scaffolded Formula Sheets: Provide structured step-by-step checklists (1. Clear Fractions, 2. Distribute, 3. Combine, 4. Isolate) for students requiring processing scaffolds.
-Quiz
-Check-Ins
-Performance Task
-Assessments