I've written a number of articles about various aspects of chess for young children. You can read some of them here.

FOURTEEN FALLACIES ABOUT JUNIOR CHESS

CHESS, PIAGET AND POLGAR

CHESS THINKING SKILLS IN CHILDREN

THE GIFT OF CHESS

CHESS AND SPECIAL NEEDS EDUCATION

MY POSTS ON GM NIGEL DAVIES' CHESS IMPROVER BLOG

RICHARD INTERVIEWED BY JUSTIN HORTON