I think it's a great idea, and I made my own alterations with it. This game seems more geared for younger children, and so I made it a little bit more challenging for Liam, and I'm hoping it's a game he can grow with.
I also didn't make the dice, as I'm not that crafty. I made cards instead.
Jenn's game goes from 0-10, and is a great game for a preschooler and early kindergartner. I went to 30, and plan to go even further as he learns more. He can count to 100, but addition and subtraction he can basically do up to 10. So I'm starting here and adding to it as he grows, making more +/- cards with higher numbers, and making more of a number line.
I used scrapbook cardstock, and found this page that was perfect squares. When I had to attach the rows to make a number line, I just used scotch tape.
Game play is simple. Start at 0 and work your way to the end of the number line. Jenn makes two games out of hers: one is addition and one is subtraction. If you are doing the addition, then you start at zero and only use the + cards, going up to the last number. If you are doing the subtraction, you start at the finishing number (30, in my case) and only use the subtraction cards. Depending on what skill you need to work on, or your child's interest level in the game, you can see there are several ways you can play. If your child can sit and play games for a longer period of time, you may want to utilize both +/- cards and go from 0 to your final number, to make it more challenging.
Since my strong points are reading and English, I can use all of the math and science activities I can find! And I'm not to crafty, so I need simple, easy activities that still catch his interest (as math and science are his strong points!) I'm open to any ideas....leave me a comment or an email and let me know what works for you!