I chose to make the silver nitrate move to the bottom. I chose this because I wanted to better understand the set heading block. I did not struggle with this challenge. I got help from the cookbook. I found it helpful that in addition to giving algorithms, the cookbook explained how the code blocks work. I was able to learn what the set heading block is all about. After that I was able to chose the right direction for the silver nitrate (270 degrees) without seeing the solution in the cookbook. I will encourage my students to read about the code blocks to learn more about them.