Lesson 1

Facts I Know: Multiplication and Division

Est. Class Sessions: 1

Daily Practice and Problems

Teacher Notes
X

TIMS Bit

The questions for the tables highlight two algebraic properties: The multiplication property of zero and the multiplication property of one.

    1. 
    2. All the numbers in the first column are zeros. Any number times zero is zero.
    3. odd × even = even
      2. 
    2. The numbers on the first two columns are the same. Any number times 1 is that number.
    3. odd × odd = odd

A. Mixed-Up Multiplication Tables

Complete the tables. Look for patterns.

      2. 
  1. Describe any patterns you see in the first column under the 0. Why does this pattern happen here?
  2. What happens when you multiply an odd number times an even number?
      2. 
  1. Describe the column under the X compared to the column under the 1. Why does this happen here?
  2. What happens when you multiply an odd number times an odd number?