Lesson 9

Fact Families

Est. Class Sessions: 1

Daily Practice and Problems

Teacher Notes
X

Have connecting cubes readily available.

  1. 17 is odd because there is one left over after you make pairs.
  2. This number is odd because of the plus 1.
  3. 26 is even. I know 6 is even because of the 3 groups of 2 and any number that ends in 6 is then also even.

CC. Even or Odd

Decide if each number is even or odd. Tell your neighbor how you decided.

  1. 17 _________________________
  2. 2 + 2 + 2 + 2 + 2 + 2 + 1 _________________________
  3. 26 _________________________