Don Dean

Project Amazonas "The Reforestation and Environmental Education (TREE)" Initiative, avid student of languages and cultures, classical musician. My "plaything" is a 50-acre parcel in the Upper Amazon.




Oakland Public Schools

Recent Posts by Don

Mon Apr 30, 2012 7:33 PM in Anatomy Labs
We test for fats, starch, protein, and sugars. Fat is easy, rub it on paper. Starch is easy, diluted iodine. Protein makes a nice orange precipitate with copper sulfate - need a Bunsen burner, and sugar (also Bunsen burner) with Benedict's solution. A lot to manage, but it's a nice day in the lab. Students bring in their own samples and really get invested in the results. Don Dean Oakland...

Mon Apr 30, 2012 6:55 PM in Anatomy Labs
We have a basic text and survey all the systems and organs, then working in small groups, show the connections between the systems on annotated, chart-sized posters (one class period for this activity). Then each student is assigned an organ and writes a letter to the Human Body Corporation (times are tough and one organ is getting laid off - need to make the case for saving the job and an altern...

Sun Apr 29, 2012 8:26 AM in Rat Dissection
Hi Gerry, Surely, one class period is not enough if it's to be a true learning experience. We spend two days on the frog, and that only after a thorough review of all human body systems and organs. If lab time is limited, it's no time for new instruction - it should be the "aha" moment. We store the specimens overnight in large baggies, labeled by lab team and period, spraying them with a litt...