by Kathy Surface
On the 100th day of school, I have my kindergarten students each to bring in 100 small pieces of some kind of food (cereal, candies, etc.) in a Ziploc bag. We weigh the bags on the balance scale while making predictions and discussing other aspects of the bag. As we check each of the bags, the children gain practice in understanding the concepts of more, less, and equal.
Kathy Surface is a teacher at St. Peter Interparish School in Jefferson City, MO.