Holiday Madness & Problem 5.2

Today students shared their collages and purchase lists with each other. Folks turned out to be more interested in wants than needs, believe it or not!

We discussed Part III of Holiday Madne$$, and how to calculate interest. There are step by step examples of how in the classnotes, which can be downloaded here.

We also worked more on problem 5.2, measuring with mirrors, and two main ways to figure out missing lengths in similar triangles, ratios and scale factors. The classnotes are here.

No new homework, but you do have ACE 5.2 homework due tomorrow, and Part III due Thursday.