My friend, Amanda, at Free to Discover, has an awesome set of products called, "Old Math Guy," that I have been wanting to try out, and this was the perfect opportunity. I decided on Matching Linear Graphs to Equations in Slope Intercept Form. I asked the kids if anyone knew how to play "Old Maid," and a few said they did. I had a few kids tag-team explaining the rules of "Old Maid." Then one of my students said, "Did you bring in cards for us to play Old Maid?" I nodded. Then he said, "Wait, these are going to have math problems on them, aren't they?" I said, "Of course they are!" The rules are the same as Old Maid - they look for matches and lay them down and they draw from their neighbors hand until all the cards are out and someone ends up with the Old Math Guy.
Amanda even has a freebie in her store to try out with your kiddos: Old Math Guy Translating Algebraic Expressions