A.S.
The type of lessons you're looking for are the 'survival' lessons. http://www.childsurvivalswimming.com/pages/kim
Personally, I found mommy and me swim lessons to be a waste of time for actually learning how to swim, but getting my kids comfortable, read happy, in the water it was priceless. Kids love to imitate, and when they see you in the water and enjoying it, they want to do it too. GL.