Welcome to CAST!

The Colorado Association of Science Teachers' goal is to support, stimulate, and improve science education for students of all ages in Colorado. Please keep in touch with CAST through this website and the social media listed below.  

Free PD! Teaching & Learning COLabs this summer!

Teaching and Learning COLabs are locally hosted, multi-disciplinary events developed and supported by the Colorado Department of Education. These events focus on teaching and learning and standards implementation, and are designed for collaboration, bringing together stakeholders in K-12, higher education, Colorado's professional teaching organizations, and the Colorado Department of Education. And they're FREE!

Thursday, June 2, 8:30 -3:30         Colorado Mesa University, Grand Junction 

Wednesday, June 8, 8:30 -3:30     University of Northern Colorado, Greeley 

Tuesday, June 21, 8:30 -3:30         CSU-Pueblo, Pueblo

Click here to register!


to our Pre-Service Award Winner 2022!

Emma DeHerrera

Monte Vista High School


Science Teachers! Make your voice heard!

Take this survey to let us know what you want and need from CAST! Please respond no later than June 10, 2022.

Feel free to share this survey with any science teacher in Colorado!

Election Results

President-Elect: Autumn Rivera

Secretary: Rick Farrer

Regional Directors:

  Region I College/Informal: Janelle Johnson

  Region II Elementary: Jami Seabolt

  Region III Secondary: Doug Eccher

Thank you to all who ran!

Congratulations to

Autumn Rivera,

Colorado Teacher of the Year AND

National Teacher of the Year Finalist!

Sophie-May Ostendorp

St. Columba Catholic School

Zach Scheurs

Firestone Charter Academy

Colorado Science and Engineering Fair 2022

CAST Awards

Gerald Gromko Memorial Award

Geo Raguraman

Discovery Canyon High School

Ada Pence & Hannah Shelton

Centauri High School

Amanda Castillo-Lopez

Cherry Creek High School

Get connected!

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

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 

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

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 Treasure

For website information:  CAST Webmaster

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

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