Dana Tsai

Dana Horton portrait

Dana Tsai

Science Teacher


Voicemail: (303) 982-1915


  • Biology
  • Conceptual Chemistry

Students: All course materials can be found on Google Classroom.

Google Classroom Codes

Block 1 - Biology  cl8mwbh
Block 3 - Biology  ydu1go
Block 4 - Conceptual Chemistry  31ayzx
Block 6 - Biology  rm8emk4
Block 7 - Biology  5twu05v

Parents: Do NOT use the codes above. If you do, you will be registered as a student in class and get constant reminders that you have missing assignments. Instead, sign up for e-mail summaries (daily or weekly).

Guardian email summaries include online assignment information, such as missing and upcoming assignments, and announcements for upcoming quizzes, tests, etc.

TO RECEIVE SUMMARIES: E-mail me with your student name, and the e-mail address(es) that you wish to use for summaries. I will send you an invitation and then you just accept it.


This is my third year teaching at Dakota Ridge High School and my fifth teaching high school math and science in Colorado. I am honored to work with amazing students each day as we explore the challenging and intricate world of scientific discovery. I am available to students every morning during AE and after school by appointment. 

Education & Credentials

  • MA Education, Colorado State University, 2015
  • BS Molecular Environmental Biology, UC Berkeley, 2008
  • CDE Professional Teacher License: Secondary Science and Math Education


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