Come see how I do my estimation station and find lots more ideas for the 100th day of school in a kindergarten or first grade classroom. This post includes both math and literacy activities for this fun day. You can grab a FREEBIE too! (Mrs. Byrd's Learning Tree)
This is a fun activity to explore the science of balance and weight in the classroom. Have the students use the classroom balance scales to see how much items from their pencil boxes weigh. Does it weigh 1 bear, 2 bears, 3 bears, or more? Your students will have fun weighing their school supplies and recording their data!