Houghton Mifflin Social Studies - A broad collection of lesson plans and curriculum units. Click on a grade level to access activities. Designed for use with Houghton Mifflin texts, but adaptable source

Social Studies Lesson Plans (K-12) - Same lesson plans as "Mini-Lessons" (below) but also includes lessons for middle and high school levels that can be adapted source

Social Studies Mini-Lessons K-5 - Over 30 lesson plans contributed by teachers from fourteen states source

ProTeacher Community - Visit our growing community of elementary school teachers! Get involved today! Over 30 active discussion boards, hundreds of active discussions, and tens of thousands of teaching ideas (in our growing Community Archive). Newcomers always welcome! source

ProTeacher Archive - A growing collection of tens of thousands of ideas shared on ProTeacher over the years by teachers from across the United States and around the world. Try it now: