Activities at Home

Target: Today!

Aim at the calendar to find today's “target number”!

What You Need:

  • Calendar page for the current month
  • Paper and pencil

What You and Your Child Will Do:

  1. Ask your child to find today's date on the calendar and circle it. Discuss the fact that while the day may be Monday, for example, the date is made up of the name of the month and a number. Have your child circle the number that names today's date.
  2. Make the circled number the “target number.” Explain that the target number can be found by adding two or more numbers. Or, it can be found by subtracting one number from another.
  3. Have your child find the target number first by adding two numbers. For example, if the target number is 17, your child could add 8 and 9, writing 8 + 9 = 17.
  4. Now ask the child to name three numbers that add up to the target number. The child could name 6, 4, and 7, for example, and write 6 + 4 + 7 = 17.
  5. Finally, challenge your child to find the target number by subtracting one number from another. Here's one way: “twenty-seven minus ten equals seventeen,” (27 − 10 = 17).
  6. Repeat this activity from time to time for other “target numbers.”
  7. Making a diagram for these number sentences can help your child envision the two kinds of addition and the subtraction. (Point out that the circle in each number sentence stands for the target number.)

3 Equations using shapes instead of numbers.