PhET is a repository of simulation activities in Math and Science. This page lists translations of some of these activities into 93 languages.
The National Council of teachers of Mathematics provides Core Math Tools, a downloadable suite of interactive software tools for algebra and functions, geometry and trigonometry, and statistics and probability. The tools are appropriate for use with any high school mathematics curriculum and compatible with the Common Core State Standards for Mathematics in terms of content and mathematical practices. Java required.
Illuminations provides standards-based resources and materials that illuminate the vision of National Council of Teachers of Mathematics for school mathematics and improve the teaching and learning of mathematics for each and every student. Lessons and activities on Illuminations can be searched by grade level and broad mathematics area.
This website is provided by WGBH and partner organizations. It features curriculum ideas, teaching strategies, and resources for home visiting organizations.
Seeds of STEM is a website provided by Worcester Polytechnic Institute featuring a STEM curriculum and teacher resources for pre-school STEM education.
The Boston Children's Museum has published a STEM learning guide for preschool teachers. the 28-page resource includes background material, activities, and references.
Education.com provides an extensive library of resources for grades preK-6. They include lesson plans and guided lessons.
TED-Ed provides lesson resources such as graphic organizers and reflective questions for teachers to use along with TED talks. Students are encouraged and inspired to produce their own TED-style talks.