Our math units circle back around to addition fluency problems in October, and students start to become a little bored with the same old thing. To spice things up for the holidays, our first grade decided to change out some of the traditional manipulatives and word problems with Halloween-themed treats. If Halloween isn’t an appropriate theme for your class, using fall leaves with foam stickers or silk leaves as manipulatives works just as well. The important thing is giving students many opportunities to practice computational fluency while enjoying their work.
https://www.scholastic.com/teachers/blog-posts/meghan-everette/common-core-halloween-math-printable-games-number-sense/