The Education Resources Information Center from the US Department of Education.
Includes ability to limit search results by education level (such as early childhood education or a particular grade) and audience (such as counselors, parents, or teachers)
You must first create a free account* from on-campus. Find specs on new and innovative materials. Materials are organized by their chemical composition. Review the brief database tutorial before getting started.
There is a 30 material download limit per day for each user.
