Connecting, supporting, and empowering science educators

throughout Colorado.


**The Colorado Science Conference will be held:

  • Oct 25, 2024 (Fri) at CSU- Spur in Denver. 

________________________________________________________________________________________________________________________________

 Congratulations to Dr. Yajaira Fuentes-Tauber,

CAST Region I Secondary Director



NSTA’s Robert E. Yager Exemplary Teaching Awardee

for District XIV !!





Congratulations to Autumn Rivera, CAST President-Elect

Association for Middle Level EducationTeacher of the Year!


Colorful balloons and word congratulations






2023 CAST Pre-Service Teaching Award Winners





Get connected!


Join the Colorado Science Teachers FB Group - click on the image below! 

Important Posted Links

Did you know...

A group of science teachers first met to organize CAST in April of 1957.  Over 100 teachers met and the dues were $1.  

Why Join CAST? 

Join our statewide network of science educators! As a member, you'll have access to resources for professional development, opportunities for networking, CAST-specific awards and grants, and discounts with our friends of CAST. 

For more details or to join, view the "Membership" page 

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Friends of CAST

Please click on any of the logos below to explore the websites of these important organizations!

Attention - Colorado Science Organizations - If YOU would like to become a Friend of CAST, please click the link below to check out our current MOU agreement template.  If this looks appealing, then feel free to contact* a Board Member to set up an agreement OR follow the link to fill out the online form.  (*see Contact tab at the top of this page)

CAST MOU Agreement - Online Form



Western Museum of Mining & Industry





Colorado Gators Reptile Park


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CAST is an affiliate of the National Science Teaching Association, NSTA.  

NSTA's Home Page

NSTA's Publications and Freebies


For membership information: CAST Secretary

For billing/invoice information: CAST Treasurer

For website information:  CAST Webmaster

Colorado Association of Science Teachers is a 501(c)6 non-profit organization


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