Each school year we celebrate the 100th day of school.  We centre this day around mathematical concepts that can be taught using the number 100.  From the very first day of school, classes begin keeping track of the number of days they have been in school.  The entire day, students engage in activities are differentiated and range anywhere from completing 100 exercises to making 100 beaded necklaces.  Special attendance awards are given to students who have been present for all 100 days.