The Home Instructor's Guide bridges the gaps between the textbook and workbooks in the Primary Math 6A program, walking you through them in a logical, step-by-step fashion. How does the Home Instructor's Guide work? The Home Instructor's Guide works in much the same way that a History / Bible / Literature Instructor's Sonlight resource: https://www.sonlight.com/products/singapore-primary-math-us-edition-6a-home-instructors-guide-only