Thinkabara

🧮 8th Grade · Math8.F.A.3Unit 5: Functions

Linear vs nonlinear

Google Classroom

🎯 Objective: Students tell linear from nonlinear functions.

Lesson outline

  1. Area of squares vs perimeter.
  2. Graph.
  3. Practice.
  4. Exit: classify three.

Lesson 3 of 5 in this unit. In the Lesson Planner this lesson takes 1–3 class periods depending on your timetable: day 1 introduce & model, then practice, small-group reteach and a quick check.

📐 Standard

8.F.A.3

Common Core State Standards for Mathematics, Grade 8 — typical US scope & sequence

🏁 Unit goals

  • Understand a function as a rule with exactly one output per input
  • Compare and construct functions; describe graphs qualitatively

✅ Check for understanding

End with the exit ticket in the outline. Sort answers into got it / almost / not yet and start the next lesson with a 5-minute reteach for the “not yets”.

Practice & resources on Thinkabara

🎯 Practice: Functions📚 All 8th Grade skills🎮 Learning games⚡ Capy Live class quiz

🗓️ Plan the whole year like this

Add 8th Grade Math to your free Lesson Planner: enter your timetable once and every period shows the next lesson, skipping weekends and school breaks.

Add to my planner See the year’s sequence

More lessons in “Functions”

  1. What is a function?
  2. Comparing functions
  3. Linear vs nonlinear
  4. Modeling with functions
  5. Describing graphs

Something to improve in this lesson? Tell us.