We used level 1A this year. If we were better at practicing (or enforcing practicing), we could have done more than that. There is a lot I like about this series. If you buy the whole set (which I did), the student is introduced to theory at the same time. Starts super-basic, which we needed. My only complaint is that you have to do a little snooping around in the books to figure out how the four of them weave together. I just made a chart, so that I only had to do this once and then refer to the chart for each lesson. Recommended. But do yourself a favor and make a chart.