If you are the parents of young children, you MUST work with them.  Children are really a little behind now when they come into kindergarten if they do not know their ABC's.  There are GREAT videos on You Tube for children.  
If your child doesn't know nursery rhymes, ABC's or how to count, you can let them listen to these videos.  They are Great!!!!
The first one I really like starts with the basic things:  nursery rhymes:
Go to   Old McDonald
http://www.youtube.com/watch?v=1EK4SE3ou8w&feature=relmfu  

                                                                                                                                                                                   Children will learn most things easier and faster WITH music!!