I created these finding slope from a table or set of points notes for my Algebra 1 students to complete in their interactive notebooks.
We used our vertical number lines to help us find the delta y and delta x values.
You can find the slope concept map included in the picture above on my blog as well!
I always start teaching slope with the “scary textbook definition.” Students are freaking out. They think they’re never going to understand this new topic. Then, we slowly break apart the fancy definition into something that is much less scary and more familiar. Eventually, they realize that slope really isn’t that bad at all.
I did find a way to incorporate a foldable into this lesson, though. My students used our new handy dandy foldable vertical number lines to find the differences in the x values and the y values.
We only do slope as delta y/delta x or change in y over change in x. The slope formula (y2-y1)/(x2-x1) has been banned in my classroom for two years now. And, it’s one of the best decisions I ever made. When my students have to think about what’s happening on the number line, they are much more accurate and careful than when they try to remember integer rules that they never really learned in the first place.
I’m also a total convert to vertical number lines now. They’re awesome. Of course I still just have a horizontal number line in my classroom. Next year, though, I will have a vertical number line on the wall, too. It’s a must-have now.
I love that students can fold out the number line when they need it. Fold it back when they don’t. I wrote more about the vertical number line here.
These notes were a great improvement over my notes from a few years ago.
More Activities for Teaching Slope
- Average Rate of Change Self-Checking Question Stack Activity
- Finding Rate of Change from a Graph Hole Punch Activity
- Slope Treasure Hunt Activity
- Calculating Slope and Intercepts Foldable
- Finding Slope Foldable
- Four Types of Slope Graphic Organizer
- Rate of Change Interpreting Graphs Practice
- Rate of Change Graphic Organizer and Practice Problems
- Finding Slope and Intercepts Foldable
- Interpreting Slope and Intercepts Foldable
- Calculating Rate of Change from a Graph Practice Book
- Crow and the Pitcher Activity for Introducing Rate of Change
- Calculating Rate of Change from a Table or Set of Points Practice Book
- The Adventures of Slope Dude Posters
- Slope Dude Says
- Finding Slope from a Table or Set of Points Notes
- Slope Concept Map
- Finding Slope from a Graph Graphic Organizer
- Interpreting Slope from a Graph or Table Practice Book
- WWSDS What Would Slope Dude Say Posters
- Slope Art Assignment
- Four Types of Slope Foldable
- Four Cars Task for Introducing Rate of Change
- Slope and Intercept Practice Poof Book
- Four Types of Slope Name Art Activity
- Rate of Change Graphic Organizer
- Rise Over Run Reminders
- Slope Between Two Points – Around the Room Practice Activity
- Four Types of Slope Pictures
- Slope Foldable
- Slope Tree Method for Teaching 4 Types of Slope