generalGrades 8
Grade 8 Lesson Plans
Create free printable math lesson plans for 8th grade. Standards-aligned lesson plans for linear functions, systems of equations, geometry, and statistics. Perfect for teachers and tutors.
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Understanding Linear Functions
Grade: 8thTopic: Algebra & Expressions
Name: _________________________Date: _____________
Learning Objectives
- Understand functions as input-output relationships(8.F.A.1)
- Graph linear functions from equations(8.F.A.3)
Materials Needed
- Graph paper (3 per student)
Warm-Up Activity
5-10 minIntroduction
- Machine: Input x, output 2x + 1. What outputs for 0, 1, 2, 3?
Main Lesson / Direct Instruction
15-20 minDirect instruction
- Function: each input has exactly one output
- y = mx + b: m is slope, b is y-intercept
- Graph by plotting points or using slope-intercept
Guided Practice
10-15 minGuided work
- Graph y = 2x - 3, y = -x + 4
Independent Practice
10-15 minIndividual practice
- Graph linear functions
- Write equations from graphs
Assessment
Formative:
- Check graphing
Summative: Graph y = -2x + 5 and identify slope and y-intercept
Closure
5 min- What makes a relationship a function?
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