Here are two software CDs designed to assist beginners
Chess Tactics for Beginners. More than 1,300 positions for the beginners! Themes covered: Mate in one, Mate in two, Win a rook, Win a piece, Draw, etc. This program is based on a bestseller by the experienced coach Sergey Ivashchenko. Over 200 thousand copies were sold in the Soviet Union!
Check and Mate!. Ten lessons on attacking the enemy king, each with a text introduction, then a game in which you have to find the right moves, with points for doing so in a set amount of time. Excellent training for beginners up to club level.
BOOKS on TACTICS
Chess Tactics for Kids, Murray Chandler. This book has been moving in and out of tock quickly at Amazon. I have not yet seen it and there are no reviews yet at Amazon, but it's their big seller on tactics for kids.
Young readers could certain try one of the next five books. An easy, helpful approach, and not too intense.
I keep the next two books handy for a quick review before I head off to tournaments. The tactics are organized into thematic sections. You may start off slowly, but after a dozen or so, you really began picking up the patterns!