From Glen Woiceshyn at Powerful Minds.com:
We just added a new math text and exercise book—Conceptual Math I: Basic Arithmetic—to the Math section of our store (plus a corresponding teacher’s version.) Intended for grades 4-6, this 170-page book is designed to give the student clear understanding and proficiency in basic arithmetic, including addition, subtraction, multiplication, and division. The book teaches math inductively by integrating math to its historical development and showing how each new idea flows logically from the existing knowledge. Many exercises in the form of numerical calculations, word problems, and short essay-type questions are found in the book.