It was great to see Piper again! We reviewed the principle concepts for Piper's upcoming test (I understand she will be taking it next week, when school resumes) by working through a set of problems. Piper is a very bright student, and is very quick to understand the gist of the questions. I very much approve - and I told her! - of the fact that she works through the problems by writing everything down. She also has a very intuitive and analytical understanding of the math involved. A good class!