Description
Author: Karelien Kriel
Number of pages: 2 (examples)
- Photos and three step-by-step methods for each example
- Method 1: Concrete (physical objects)
- Method 2: Semi-concrete (objects on paper) – Dienes blocks
- Method 3: Abstract (writing) – breaking up method
- Example 1: 220 + 150
- Example 2: 250 + 160
