Possible written expressions: Possible written expressions: Possible written expressions: 3 4 + 2 = 5 ½ + 4 5 + 5 ½ = 4 4 9 6 = • • • • • • • .5(1 5) + 4 5 = 4 2 + 2 3 = 8(9 6) + 8(9 6) = • • • • • • 42 + 4 + 2(5 = 4 4 2 = ∙ 1 2(6 9 2 4) = ) • – • • • 42 2 = 42 9 6 = ∙ ∙ −
Possible written expressions: 3 • 4 + 2 = 4 • 2 + 2 • 3 = 4 • 4 – 2 = 42 − 2 = Possible written expressions: 5 • ½ + 4 • 5 + 5 • ½ = .5(1 • 5) + 4 • 5 = 42 + 4 + 2(5 ∙ 1 = ) Possible written expressions: 4 • 4 • 9 • 6 = 8(9 • 6) + 8(9 • 6) = 2(6 • 9 • 2 • 4) = 42 ∙ 9 ∙ 6 =
UncoveringCoherenceUsingAreaModelsSupportingMaterials.docx