The 100th day of school is always a big day in elementary schools.  It's a great time to use the calendar to reinforce all kinds of ideas around the number "100."  Counting, Multiplying, Base Ten, Exponents and many other ideas come up in our classrooms.  For Grand View kindergarten teachers Erin Crum, Julie Brancato, Dina Abt, Michelle Mangan, Jen Putich, Kelly Borah, they transformed themselves into centenarians - 100 year old teachers - for they day. Their students loved it!