I was able to play until midnight on my iPad after I figure out how to get on my wifi. Family lost the guest password. We found it and I was off and trying the iPad most of the night.   I noticed that for Math there were a few fair to good free apps for grades K-2 but not many for grades 3-5.  Many of the better yellow starred apps cost money.  I think I will first go online to search "free apps" for children and get an overview about what they are like.  i books did not have many children's books for free.  Clelia gave me a place to try out and I will let you know what I find.

JoAnne