Some useful online childrens resources for psalm 23:-
Paul Dallgas-Frey's paraphrased version of psalm 23, with a colourful illustration. The text here would be easily understood by most junior and secondary school children.
An explanation of Psalm 23 for children by dltk-bible. A useful essay that could be read to children to deepen their understanding of the psalm and King David.
A free sunday school lesson on psalm 23 for pre-school age and toddlers. Includes a suggested memory verse, story, and sample prayer. Also arts and crafts activities related to psalm 23 can be purchased here.
Children's CD on Psalm 23 entitled "Psalm 23 for Kids" - a childrens CD that helps them understand the importance of this scripture for their lives. With stories written and read by Patricia King and music composed by Steve Swanson.
Cute young girl reciting Psalm 23 (is it time for "Surely" yet?!)
The following is an animation aimed at young children. It depicts David as a young shepherd boy, singing psalm 23 to gentle music. Produced by Tricross Studios.
Here's a version of psalm 23 suitable for older children to use. It's taken from the Message version of the scriptures:-
1-3 God, my shepherd! I don't need a thing.
You have bedded me down in lush meadows,
you find me quiet pools to drink from.
True to your word,
you let me catch my breath
and send me in the right direction.
4 Even when the way goes through
I'm not afraid
when you walk at my side.
Your trusty shepherd's crook
makes me feel secure.
5 You serve me a six-course dinner
right in front of my enemies.
You revive my drooping head;
my cup brims with blessing.
6 Your beauty and love chase after me
every day of my life.
I'm back home in the house of God
for the rest of my life.
(Psalm 23, The Message)