The Truth: The sad truth about majority of young kids and math is that they don't like math and all they want is to get home and play video games.

The solution: Write a math based video game!

The idea: Everytime they get something correct math related, they earn experience points. They need enough experience to level up, similar to RPG's. They need 400 xp to reach level 2. 900 xp to reach level 3. 1400 xp for level 4. And so on. Their homework would be to reach a certain level before the next day. Over leveling would mean they wouldn't need to play as hard the next day, effectively causing them to learn and have fun with it. What kid wouldn't kill to level up fast. They are already doing it as adults playing World of Warcraft! It would need to be something not as boring as just math story problems or flash cards, but something with a twist, blending a fun game with mathematics involved. Like a player would need to complete a quest and the quest giver gives em a math related story / quest that they would need to pull off in order to complete the quest and earn experience during the quest as well as earn experience after completing the quest. You can't get any more hands on than that and what kid these days don't own a computer. It's nearly 2012

Marketable?: Possibly