1. Winter Social (evening): In early winter, CBTA members join to share ideas and a delicious meal followed by a guest speaker. 

2. Spring Symposium (one day): In late spring, CBTA sponsors sessions covering a variety of topics that teachers can use in their classrooms. 

3. Summer Workshop: CBTA occasionally sponsors longer workshops in the summer for teachers to become immersed in the biology of a particular area. 

4. Fall Professional Development (one day): This workshop is held in early fall to study an area of biological interest in greater detail. Places visited in the past have included Pingree Park, Rocky Mountain National Park, Great Sand Dunes, Coldorado National Monument/Grand Mesa, Winter Park/Hot Sulphur Springs, Mt. Evans, and Nature Conservancy's Phantom Canyon. 

5. Colorado Science Conference (one day): During the fall of each year, CBTA co-sponsors this convention with other state science teacher organizations. Teachers attend workshops, concurrent sessions, hear nationally known speakers, and visit displays to learn about what is new in biology and other science areas. 

6. Mini-Grants: Members have the opportunity to apply of mini-grants to fund biology classroom innovation. 

7. Re-certification Credit: Credit is available fro many CBTA programs. 

8. Teachers' Awards: The Outstanding Biology Teacher Award (OBTA) is presented each year to a biology teacher who has shown innovation in the classroom as well as made professional contributions. The awardee is given cash, equipment and funding to attend the National Association of Biology Teachers Convention where they are honored with other awardees at the OBTA luncheon. 

9. Student Awards: CBTA honors outstanding biology projects at the Colorado Science and Engineering Fair and at the Colorado/Wyoming Junior Academy of Science Research Day.