Earlier I posted on research relating to high school students using open textbooks in their science classes. One of my favorite parts of that article was a figure that illustrated different potential outcomes, both in terms of money saved by using open textbooks and learning gained. Here’s that figure:

In the article, we described 2 iterations of purchasing books, and 1 iteration of comparative test scores. We’ve just finished our 3rd iteration of buying books (cost per book, including shipping ~ $4.00), and are getting our 2nd iteration of test data (not clear yet, but it looks like scores increased). If these two items turn out to be correct then the school district will be in the top right hand corner of the Figure … that sweet spot of saving money and increasing learning. More to come!