Deductive Geometry is for students, parents, and teachers who need practice solving proofs in geometry. Specifically, where geometry is part of the 4e curriculum in a French program, or for American students taking geometry between grades 8 and 10. This book shows, step-by-step, how to reason and solve geometry problems by writing solutions in a clear, logical, and deductive sequence. This strategy is called modeling. Students learn by imitating the method and eliminating all the non-value adding verbiage that are distracting to the grader. By showing the core steps required to solve a problem, students avoid extraneous text and steps that make the solution difficult to follow and difficult for the grader to evaluate with precision. The book should be used as a complement to any geometry textbook. It is especially beneficial for average students with difficulties writing the solution to a problem in a logical deductive process. I would recommend the user of my book to, first, try to solve the problems entirely before comparing with the step-by-step solutions following each chapter.
Mr. Guyamier has a baccalaureate and a master’s degree in math education and over forty years experience of teaching mathematics in the United States and Canada. After years of using different books, he started writing this material for his own students over ten years ago and has been refining it ever since.