Here is a fun way to celebrate Thanksgiving in the classroom without any direct reference to Thanksgiving. I have a set of Turkey Math Games which will give your math lessons a Thanksgiving flavor without any mention of Thanksgiving.
There are 7 printable math board games in this set. They all focus on basic addition and subtraction skills.
If want some fun math for Thanksgiving, you will love these.
Here is a fun Thanksgiving Math Game - You only need counters and dice to play. It's My Turkey Math Game Freebie - Turkey Race. Children create and compare 2 or 3 digit numbers as they race their turkeys!