Math for us is so much fun. We count everything from cookies, crayons, old juice lids, cars, boy that's a big one. Cars!! I have a video on my new game can of fun, it might give you some ideas. Also if you go to
www.earlylearningathome.com she has some really great games as well. I have just made a bunch of math file folder games that I hope to post soon. We like hands on stuff around here so we use dominoes, wooden sticks, cars, small animals, all kinds of small stuff, and some big stuff like stuffed animals. The big thing now for us is foam large beads, that we can sort, match, and count. think about using file folder games, lap books, games, and math books. We also use cereal for counting like Kix or cheerios or fruit loops.
Also jumpstart program has a math software for all grades that we like to use sometimes.
Also cooking is a great way to teach math, no matter what age. There are tons of books about kids in the kitchen.
If there is a paticular item like cars that he likes use that in your math. I use stickers to create my file folder board games and a spinner. This goes over well, because it is cars. I also made a game where we place the cars in a garage by counting and sorting the cars, which garage do they fit in. Use his interested items in his not so interested items.