"FACTOR THIS " is a remarkable resource that will enable your students to memorize the "Multiplication Table" in a fun, new, and simplified way. The key to this new system is the "Reversibility of Factors." This rule of mathematics, when taught to students from the very beginning, enables them to memorize a much smaller "Multiplication Table." Please note the vastly simplified chart on the back cover of this book. Students will absolutely love watching the number of equations they need to memorize shrink as they work their way through each section of the book. Each section begins with an...