Lesson 4

Bouncing Ball

Est. Class Sessions: 4–5

Teacher Notes

This DPP provides practice with some of the last six facts.

Possible strategy: All multiples of 3 between 20 and 40 are 21, 24, 27, 30, 33, 36, 39.

Multiples of 4: 4 × 6 = 24 and 4 × 9 = 36

Eliminate the square number (36), leaving 24.

I am a multiple of 3.

4 is one of my factors.

I am not a square.

I am greater than 20 and less than 40.

What number am I?

Show or tell your strategy.