Lab 1a

Hello,

I am very confused on how to backtrack on my work if I mess something up on a page. The lab directions do not do enough to explain things, and you would think it would be a bit more intuitive considering you can mess your data up by saving too quickly. I resorted to deleting all my work and restarting, which was very frustrating. Additionally, I am assuming I would run into the same problem if I just saved my work and decided to come back to it later.