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.  

CSC Keynote, "After the Asteroid"
CSC Keynote, Drs. Lyson and Miller
CSC Keynote, "Pecan Pie World"
Maya Garcia presenting PAESMT
Erin Green, PAESMT
Ryan Johnson, CAST Service Award
In Memory of...
In Memory of...Dan Van Gorp
In Memory of...Don Maxwell
In Memory of...Jane Alberta Dianich
In Memory of...Mike Sipes
In Memory of...Sharon Stroud
CSC Planning Committee
CSC Greta, Pete and Jami
CSC Volunteers
CSC Supporting Organizations
CAST Board Members


Colorado Science Conference

Saturday, November 6, 2021

The 2021 virtual conference is Saturday, November 6, 2021.  

Presentation proposals are now being taken.  The deadline for priority consideration is June 15.  Acceptance of proposals will begin in July and additional submissions may be accepted through August or until spaces are full.

To learn more and/or to submit your proposal(s) click HERE.


to the WINNER of our Classroom Materials Drawing for Quarter 4! 

Nadine Klein, from Region I

has won a DRONE that was donated to CAST.

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.  

Upcoming Summer Institutes, Co-Sponsored by CAST!

Learn about the revised Colorado Academic Standards and connections to the classroom.  The Colorado Department of Education, the Colorado Association of Science Teachers and the Colorado Science Education Network are partnering with local universities, school districts, community partners and national science organizations like the National Science Teaching Association to bring free professional development for P-12 science teachers on the revised Colorado Academic Standards for Science via visual institutes this summer!

Earn up to 8.0 professional learning contact hours for full attendance and engagement.  Registration is limited to only 150 K-12 current classroom teachers from each region!

Click HERE to learn more and register for a conference near you!

Southern Colorado Institute - June 4, 2021

Eastern Colorado Institute - June 10, 2021

Denver Metro Institute - June 15, 2021

Pikes Peak Institute - July 13, 2021

Northern Colorado Institute - August 4, 2021

       CAST MEMBERS...


📌 Make sure to check out all the Professional Development Opportunities and CAST award winners.

📌 Love free things?  Check out NSTA's free resources.  


2019 CAST Constitution and By-Laws 


Why Join CAST? 

You'll find lots of reasons to 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 

Did you know that there is a Colorado Science Teachers Facebook Group?  If you are interested, click on the image below! 

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 Template

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 website information/email blasts:  CAST Webmaster

For billing/invoice information: CAST Treasurer

For membership information: CAST Secretary  

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

Powered by Wild Apricot Membership Software