Another thing we do at our school is collections of hundreds. Tables are set up in the hallway and the children bring in their collections of one hundred items. These are displayed throughout the week for others to see. It is always fun to watch the little ones as they talk about the different collections. Some of them are very creative.
In my class we celebrated Hundreds Day with different writing and Math activities. Some of them I got from TpT. Others I got from teacher blogs. (There are so many great ideas there, it seems silly to scramble to make my own.)
Unfortunately, I don't know who all the products belong to anymore because they don't have the creators' info anywhere on them. I appreciate the work that was put into them and I would love to give credit to the authors. If anyone recognizes them and knows who they belong to, please let me know.