- NASA Next Gen STEM For Educators
- National Institutes of Health (NIH) STEM Teaching Resources
- National Science Foundation (NSF) Classroom Resources
- American Chemical Society (ACS) Educational Resources (by Education Level)
- American Institute of Aeronautics and Astronautics (AIAA): Aerospace Micro-Lessons
- BioEd Online (Science Teacher Resources from Baylor College of Medicine)
- CornellLab K-12 Education (Lessons/Activities for learning about birds/ornithology)
- National Center for Science Education (NCSE): Classroom Resources
- Code.org Curriculum Catalog
- Creative Computing Curriculum from Harvard Graduate School of Education
- Education.com resources for Science
- Education.com resources for Math
- GreatSchools.org free worksheets (Math and Science)
- American Museum of Natural History: Resources for Learning
- MIT Blossoms: Math & Science Video Lessons for High School Classrooms
- National Environmental Education Foundation: Environmental Education Resources
- National Park Service – Resources for Educators
- National Wildlife Federation – Educator Tools
- Public Broadcasting System (PBS) Learning Media
- Smithsonian Learning Lab
- ISS National Laboratory – Center for the Advancement of Science in Space: Lesson Plans
- US Food and Drug Administration (FDA): Science and Our Food Supply (Middle/High Curriculum)
- SoftSchools
- TeachEngineering
- Let’s Talk Science