When our school started thinking maps we were told the same thing...you HAVE to do this map during this specific week and I felt frustrated. Looking back I am glad that they forced me to do all of the maps because I probably would never have tried any other map besides a circle map
. Like the PPs have said, once you get use to them they really are easy to incorporate into your curriculum.
When I first introduce double bubble maps I give my students each a starburst candy and a piece of "double bubble" gum for us to compare. Another introduction double bubble map that I do is to compare 2 types of cookies. The kids love it because they have to eat both types of cookies and candy treats in order to compare them.
Here are some other double bubble ideas:
compare Halloween to Thanksgiving
compare two girls in your class (or two boys)
compare you to your principal (or other staff member in the school)
compare two special area classes (art vs. music class)
compare characters from two read alouds that you have done