Expert/company advocating this approach (if applicable):
teacer

Description of method:
At the preschool I work at we put food coloring or bathtub colors in the toilet so when the child pees it changes color. The child gets very excited and often likes to show other children who are training.

Recommended age for this method:
3 & up

How long should it take for child to be potty trained by this method?
?