Types of Slope

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 determine if a line has a positive, negative, zero, or undefined slope from a graph.

Part 1 of 4

Warm-up video

Tutoring Hour · 5:39Vetted channel

We don't generate video — this one is by Tutoring Hour 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 4

Key concepts

3 concepts

  1. 1

    A slope describes the steepness of a line.

  2. 2

    Slope, represented by the letter m, is calculated as rise over run, which is the change in y over the change in x.

  3. 3

    A line that goes up from left to right has a positive slope, a line that goes down from left to right has a negative slope, a horizontal line has a zero slope, and a vertical line has an undefined slope.

Part 3 of 4

Practice

12 questions

1

What does the slope of a line describe?

2

A line on a graph goes upwards as you move from left to right. What type of slope does this line have?

Part 4 of 4

Exit ticket

Quick comprehension check

Describe the type of slope (positive, negative, zero, or undefined) for a line that goes down as you move from left to right on a graph.

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