This is a set of 100 little black and white squares with numbered trees. I created these to number the desks in my classroom, and then I decided to keep going. Possible uses include desk labels, math manipulatives, calendar pieces, and game pieces. They would also be cute for numbering pages in a teacher-created workbook or packet.
The set includes 100 separate png files, one little tree per file, so each tree can be used separately. Put them together to make a chart, a board game, or whatever you like.