Textbook (non-consumable, paperback, printed in black, white and purple) and Workbook (consumable, paperback, printed in black and white). If you have not used Singapore Math® before please go to Singapore Math® Overview for a complete description, samples, placement guide, and a placement test. US Edition. Primary Mat Sonlight resource: https://www.sonlight.com/products/singapore-primary-math-us-edition-6a