1. List important prerequisite ideas for learning to multiply with multiples of 10 and 100.
2. How does thinking in tens help with multiplying 4x60?
3. How do base 10 manipulatives help with learning to multiply with 2- and 3-digit numbers?
4. Why are proportional materials like base 10 blocks good manipulatives for learning multiplication?
5. Why are non-proportional base 10 materials good for learning multiplication?
6. Take out your base 10 blocks and build the multiplication problem 235x4
7. Sketch what it would look like to build the multiplication problem 462x4 using either the Montessori stamp game or the round manipulatives pictured in Primary Mathematics.
8. Write out an informal/child invented way of multiplying (with numbers, not manipulatives) 462x4
9. Compute 462x4 using
a. the expanded algorithm
b. the standard/traditional algorithm
c. the lattice algorithm