Art of Problem Solving: Precalculus Books Set (2 Books) - Precalculus Text, Precalculus Solutions Manual

Scientific studies of how people learn have repeatedly shown that we learn best by doing and testing ourselves. This book is set up so that each topic has a brief introduction to the material and then immediately a set of practice problems. After the practice problems is an explanation of how to do each problem but the student is encouraged to try the problems first. The approach of learning by doing and challenging students with the problems before the explanations is aligned with the scientific research on how people learn for the long-term. I am really enjoying this book.

We've checked the ISBNs from this listing for both volumes, and both agree with those given on AoPS... so do yourself a favor, and, as we said in the caption, "buy both for $62 [ $57 + $5 shipping ] directly from AoPS", at least at this time... as we just this moment did! :-)