Geometric Measurement - Add Equal Groups 1-126
Use shapes to provide context for counting, skip counting, and adding, and also build a foundation for both multiplication and measurement. If each side of an equilateral triangle has length 4, what's the total length of all 3 sides? What's 4+4+4? Since 4+4 = 8 and 8+4 = 12, the total length of all 3 sides – 3 groups of 4 – is 12.
