Welcome to Mr. Langdale's Chemistry website. The 2012-2013 year begins my 14th year as a high school chemistry teacher. I received Bachelor of Science degrees in Biology and Chemistry from Northern Arizona University, and a teaching credential from California State University of Fullerton. The first seven years of my teaching career were spent at Canyon High School where I taught Chemistry, Honors Chemistry, and AP Chemistry. I also acted as the Science Department Chairman for six of the seven years. This will be my 7th year teaching Chemistry and IDEA Chemistry at Tesoro High School