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National Science Teachers Association
The National Science Teachers Association (NSTA), founded in 1944 and headquartered in Arlington, Virginia, is the largest organization in the world committed to promoting excellence and innovation in science teaching and learning for all. NSTA's current membership of 55,000 includes science teachers, science supervisors, administrators, scientists, business and industry representatives, and others involved in and committed to science education.
Common Core State Standards Initiative
The Common Core State Standards provide a consistent, clear understanding of what students are expected to learn, so teachers and parents know what they need to do to help them.
Missouri DESE Learning Standards
The Missouri Learning Standards define the knowledge and skills students need in each grade level and course for success in college, other post-secondary training and careers. These expectations are aligned to the Show-Me Standards, which define what all Missouri high school graduates should know and be able to do.
Institute of Education Sciences website
NASA Knows! for Students K-4
NASA has the answers to your questions about airplanes, astronauts, rockets, planets and more!
Science and Children NSTA
Includes online connections, podcasts, resources from the National Science Teachers Association.
There is a link for freebies for science teachers with an option to search by keyword and filter by type.
PhET - University of Colorado
Helps students visually comprehend concepts, PhET simulations animate what is invisible to the eye through the use of graphics and intuitive controls such as click-and-drag manipulation, sliders and radio buttons.