Here are some math fact family trees that you can use all winter long. There are both addition/ subtraction and multiplication/ division versions, so you can choose what your students need. There's a full color version (for those lucky enough to have color printing!), and a blackline version if you prefer to have the kids color them in. Or, you even can print the blackline version onto colored paper.
These would make a great winter bulletin board that the students could use as a reference all winter long!! Just add some 'snow' along the bottom and some clouds at the top!
Happy (Winter) Teaching!!