Instructions are clear and direct. Each book is a complete text-workbook. For Grades 5-12. Written by Luetta Reimer and Wilbert Reimer. This 2 volume set contains 15 illustrated vignettes per book introducing students to great mathematicians from various cultures.
Stories focus on moments of mathematical discovery and on personal anecdotes.
Written by Ronald Edwards. Operation Math Tricks sparks students' interest and imagination. Unraveling the number tricks leads students through a variety of computations and mathematical discoveries. Excellent K-12 textbook and workbook math program. K-3 is manipulative based and are sold with home study kits.