The best way I can describe these books is by comparing them to Daily Grams - but for math, of course. Each of these award-winning levels provide a daily drill page for your kids. Each day they will have to complete speed drills, sample problems (with explanations in case they’ve forgotten how to do it), then more of the same simple problems. It might be 20 problems of adding simple fractions, or adding with carrying, etc. It won’t be a mixture of functions on a page, though, so the student can concentrate on moving quickly through the problems. The page ends with one story problem which would apply the skill they had just been practicing. The author claims it takes 20 minutes per day, but my kids buzz through it in about 10 minutes a day. My kids are doing this in conjunction with their current math programs, and I see a huge difference in their competence level since they are staying fresh on all their math skills while moving on to new ones. What I like: It’s so refreshing to be able to quickly and easily drill the kids. Easy and economical, with great results! I love that the author includes samples on each page. Also, the answer key is conveniently included. Mastering Essential Math Geometry will provide students with all the essential geometry skills. Vocabulary, points, lines, planes, perimeter, area, volume, and the Pythagorean theorem are just some of the topics that are covered. There is plenty of practical, real-life problem solving that shows students the importance of geometry in the real world.