These are a few of the sites that I have used in the past for lesson plan ideas. Most are secular in nature but still a wealth of useful ideas and information.
Houghton Mifflin Education Place
Archived Information for Helping Your Child Learn Math
Cardboard Cognition (Ideas for making your own educational games)
E.L. Easton Materials for Teaching and Learning
Enchanted Learning (mostly a fee based site but has some free items)
Gateway to 21st Century Skills
Click away and have fun exploring.
These look like some great sites! Thanks for sharing! 🙂