Create 100 ways to create 100 cents (a dollar) with your class for the 100th day of school! Use the pig images as templates for piggy bank tracers. Students can trace and cut out their piggy banks. Then have students cut, glue, and label 100 cents onto their biggy banks using the coins. Add in the half dollar for differentiation and use the speaking bubbles for a title or to have the students show their mental thinking as they count to 100.
The following website displays how to create 100 cents in 293 different ways! http://wiki.answers.com/Q/How_many_ways_to_make_change_for_a_dollar
(Pig and coin images are from Google Images)