Dan Meyer teaches high school math outside of Santa Cruz, CA, and explores the intersection of math instruction, multimedia, and inquiry-based learning. He received his Masters of Arts from the University of California at Davis in 2005 and Cable in the Classroom's Leader in Learning award in 2008.
University of Arkansas Center for Math and Science Education wiki that provides links to instructions, templates, and sample foldables in many subject areas
The National STEM Centre houses the largest open collection of resources for teachers of science, design and technology, engineering and mathematics in the UK. Alongside contemporary resource materials including print, multimedia, and practical resources, is a growing archive collection, which showcases several decades of curriculum development. Resources for use with early years to post-16 students are freely available as physical and eLibrary collections. The eLibrary currently contains over 4,000 teaching resources for the STEM subjects.
Great collection of math resources and tools for elementary students and teachers, including interactive media, videos, games, lesson plans, and webinars. You can search for resources by math topic or grade level.