Terrific lesson (pdf). By the way, I counted the pennies in my beaker - 126. Considering I had a few pre-1982 pennies (heavier), the 131 that my equation predicted (based on post-1982 pennies) was pretty darn good.
Your homework for Thursday is:
- Prepare for the Graphing Linear Equations by Using Intercepts Assessment. There are a variety of ways to do that including, but not limited to: review the online pre-assessment; review your notebook and/or the openers and lessons posted on the blog; review the video, work some practice problems in your textbook or that you find online. You can, of course, also get help from me, another math teacher, a teacher in the Study Center, a peer tutor in the Study Center, or a parent, sibling or friend. Do whatever works best for you, but make sure you're prepared. The expectation is that you should all be able to do very well on this assessment.
- Review today's lesson (pdf). Make sure you understand the concept of slope, how you figure out slope between any two given points, where you find slope in y = mx + b, and how slope relates to what we did with recursive routines. Pay careful attention to the bottom of the first page where it lays out several ways to think about slope, and gives you a formula to calculate slope between any two points.
- If you haven't yet, read the info for our next Skype session and submit your question(s). Questions are due no later than 7 am on Friday, but by Thursday afternoon would be better.
- You don't have to watch this, but you might enjoy this four minute video titled I Hate Pennies! Then go talk to your social studies teacher and ask them what they think about whether we should still have pennies.