The Challenge: Chris, June, Andrew, and Susan from Mrs. Telfer's class met at Welleby Park the first Saturday morning of summer vacation. When they met, each of the kids slapped hands with every other kid. How many slaps were there in all when they met?

The Solution:

Should you decide to ponder the problem and accept the challenge, communicate your solution to Mister Goodmath at "rooneym@mistergoodmath.org". Great solutions will be featured on T.V. during WAVE morning announcements.
 
 

The Hint:

Use the "Make It Simpler" strategy. Count hand slaps for two people, then 3 people, then --- --- --- ---.