Solving One-Variable Inequalities

Free to teach as-is — the teacher guide, student handout, and slides are included.

Free — we'll email you an access link. Google Docs format.

Objective

I can find the solution to one-variable inequalities and explain my answer with words, a graph, and an inequality symbol.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

Explain in your own words what it means to "isolate the variable" when solving an inequality.

2

Solve the inequality: z - 5 > 3. Write the solution using an inequality symbol and explain in words what the solution means.

Part 3 of 3

Exit ticket

Quick comprehension check

Sarah wants to buy some candy. Each candy costs $4. Sarah has $20. Write an inequality to represent the number of candies (x) Sarah can buy. Solve the inequality 4x ≤ 20. Explain your solution in words and using an inequality symbol. A plant is already 3 inches tall, and it will grow 1 inch each week. Ben wants the plant to be at least 10 inches tall. Write an inequality to represent the number of weeks (w) Ben needs to wait. Solve the inequality w + 3 ≥ 10. Explain your solution in words and using an inequality symbol. A store is offering a discount of $2 off every item. Lisa wants to buy a toy that originally costs more than $12 after the discount. Write an inequality to represent the original price (z) of the toy. Solve the inequality -2z > 12. Explain your solution in words and using an inequality symbol.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

  • Slides

    Ready to present

We'll ask for your email to send your access link — nothing else.

Teaching a group at a different level?

Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.

Adapt This Lesson