The 100th day of school is literally the 100th day of the school year. More importantly, it is a great way for elementary school teachers to celebrate the various 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’ve been in school in anticipation of the 100th day. It’s this anticipation that is actually the first math lesson, as the days are often marked using coffee stirrers or Popsicle sticks, ten of which become a “ten bundle,” paving the way to counting by tens and ones. (verywellfamily.com)
Today our 1st graders will be dressing up like they are 100 years old! What a fun way to practice and learn counting!