A friend with grandchildren was extolling the virtues of the following: for the Nintendo DS, the 
Personal Trainer series re: Cooking - 
http://personaltrainercooking.com/.  The gist of this was that if an instruction in a recipe was perplexing, the user could simply request more details ("dice the carrots" would be further explained with a shortcut to knife techniques, etc.).
I have no experience with this but child in question is 7 and cooking up a storm, from scratch, with good results!  AND, he is excited!!
Does anyone have more knowedge on this or can you recommend similar software???? 
 
  