: Focuses on addition and subtraction within the number range of 10 to 20, including "crossing the ten" (
: Unlike standard workbooks, Geidman’s methodology emphasizes "non-standard" problems that require children to think critically rather than just follow a formula.
If you are looking to download or view the materials, they are available through several educational platforms:
: Platforms such as Uchebniki.online allow you to flip through the pages of the workbook digitally.
Multi-step word problems involving "more than" or "less than" concepts.