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I loved this lesson

Months later, my students still use this lesson as a touchpoint when discussion slope, linear functions, and the y intercept. In fact, I taught this lesson before I introduced any of that formal vocabulary, and it made the ideas pop out to them so much more easily that teaching slope-intercept form was a snap.

I really recommend this lesson for students dipping into algebra. I did it with my 7th graders at the end of the year (they take Algebra 1 in 8th grade).

105 Days ago by AlexHaines

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The Gist

45-65 minutes

The 16GB Wi-Fi iPad costs $499, and the 32GB costs $599. If Apple charges the same amount for each additional GB of memory…

 

With this simple prompt we’ll explore the major topics surrounding linear functions, from slope, y-intercept and y = mx + b, to solving equations, parallel lines and linear vs. non-linear functions.

 

Along the way, we'll learn how Apple charges for its products. Do they charge a constant amount for each additional GB of memory? Should they?

Common Core Standards

8.EE.6
8.EE.7a
8.EE.7b
8.F.1
8.F.3
8.F.4

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