1. Composing and Decomposing Numbers
By Mrs. Justine Buonovolonta
Resource Room Teacher
Wood Park Primary School

2. Early Composing and Decomposition: Kindergarten- First Grade Use concrete items such as cubes to demonstrate Learning about ways to build numbers…
Making 6: The 4 and 2 way
Making 6: The 5 and 1 way

3. Students can also draw cubes if they prefer…
Number Bonds are just one type of pictorial representations of the concrete models.
Students can also draw cubes if they prefer…
Making 5, the 2 and 3 way
Making 7, the 5 and 2 way

4. Solve for missing numbers by understanding what is missing…
part
missing part
whole
Here we know the whole is 7. We are looking for a missing part. Use 7 cubes or coins to model this example. I have 7 cubes. I can decompose that into 5 and ….what? What number do I need as the other part? (2)

5. Solve for missing numbers by understanding what is missing…
Here we know the parts and we need to find the whole. Use cubes to model this example. I have 2 blue cubes and I have 3 yellow cubes.

6. Solve for missing numbers by understanding what is missing…
To find the whole, I combine the parts. 2 and 3 make 5.