How many groups of 3 toys can a child choose to take on a vacation from a toy box containing 11 toys.

I think it will be 4

Count by three's. 3, 6, 9, 12, oh no! its over 12. how many groups of 3? well we just counted them. 3 groups of 3 can be taken on the trip.
this is a simple way to do your math in this class. count by the number its asking and don't go over the number of the thing it tells you to divide.