Elementary Mathematics Selected Topics And Problem Solving  (English, Paperback, Dorofeev V.)

The purpose of this text is to help the student think through the logical processes of a solution. And to teach the student to ask himself why a certain thing is being done and to be able to answer that question. It is vitally important that the student be able at every stage in a solution to realize what has been done and what there is left to do. In short the authors have made an attempt to show the student how to solve problems properly.