Lesson 3

Addition Strategies Seminar

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X
  1. March; April (4) and May (6) combined equal March (10)
  2. 4 + 6 = 10
  3. March, April, May
  4. March; Possible response: January has 5 birthdays so I added 5 more. Since 5 + 5 = 10 I looked at the Number of Students column and saw March has 10 birthdays.

I. Birth Months

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  1. Which month has the same number of birthdays as two other months combined?
  2. Write a number sentence for Question A.
  3. Which months have an even number of birthdays?
  4. Which month has 5 more birthdays than January? How do you know?