The lesson plans featured below are very informative and include grade levels, descriptions, goals and objectives:
Mental Health Lesson Plans (http://lessonplancentral.com/lessons/Health/Mental_Health/index.htm)
Support for a variety of mental health concerns:
Mental Health America: Children's Mental Health Resource List (http://www.nmha.org/go/children)
It is never too early to help your child develop mental wellness:
Preschool Mental Health Activities (http://scruggle.tripod.com/hartstringspreschoolideas/id8.html)