Lesson 2

Fact Families

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Bit

Use this DPP item to practice skip counting by 5s and 10s that supports practice of the related multiplication facts.

1–2. Students should work in pairs for this activity. To skip count by fives on the calculator, students should press:
5 + 5 = = = = =, etc.
Calculators with the constant feature will repeat the operation, in this case adding five, each time the equal sign is pressed. Could they count twice as far by 10s as by 5s? If students do not have a calculator with the constant feature, they will need to press
5 + 5 = + 5 + 5 =, etc.

G. Skip Counting

  1. Start on 5 and skip count by 5s on the calculator for 15 seconds.
  2. Start on 10 and skip count by 10s on the calculator for 15 seconds. How far did you get?