Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Terrible Math Book

I am a retired Engineer who is a volunteer Math Tutor. This book is terrible. It is the worst teaching tool I have ever used. The students who need additional Math Tutoring do not find this book "easy" at all. The "story" gets in the way of explaining the math. The teaching part of the text is far short of an "easy" explanation and is incomplete. The problems involve material that is not covered in the text. The solutions to the problems are not explanatory so the student cannot tell where he/she has gone wrong in trying to solve a problem. Unfortunately the Library I tutor at only had this book to cover the subjects my students need to learn. Their school texts are far, far superior. This book should be discontinued.