When I checked homework over the weekend I noticed that very few students knew what to do when a slope gave them a number over 0. So we looked at this example next, which was #12a) from Thursday's work.
There was quite a lot of "side work" done to explain what these line segments looked like and how these equations make sense.
We spent the last 10 minutes playing a round of Headbanz! It was great to listen to them asking each other questions and to see the excitement when they figured out their equation.
Here is today's homework.