Multiplication and Division Lesson 1: Multiplication models, properties and basic facts

Practice questions

1. Sketch what 364x4 would look like if done with base 10 blocks

2. Sketch what 364x4 would look like if done with a non-proportional material such as the Montessori stamp game or those shown in Primary Mathematics 3A.

3. Write out 364x4 using the expanded algorithm

4. Write out 364x4 using the standard algorithm

5. Why might one want to use a non-proportional material when teaching multi-digit multiplication?

6. How can you make practice assignments in multiplication more effective for students who may struggle when learning math?

7. What should you teach before teaching how to solve problems like 36x7 or 325x4? (What is the first step for teaching multi-digit multiplication?)

8. Why might a teacher want to teach the expanded algorithm before the standard algorithm?

Solutions