Antonio Chaves

I graduated from the University of Maryland in 1982 with a B.S. in fish and wildlife. After serving two years in the Peace Corps, I stayed in Ecuador to work in the shrimp-farming industry. Eventually, I made my way back to college and earned a Ph.D. in zoology at Texas A&M University in 1999. I currently teach biology, chemistry, and environmental science in the Washington D.C. area and occasionally find the time to write articles on science and education policy.


Montgomery College

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Recent Posts by Antonio

Sat Apr 18, 2015 7:20 AM in Food Chains
I have an activity where students actually measure feed conversion in mealworms so they can see first-hand how biomass decreases up the trophic pyramid. The only unusual item of equipment you need is a drying oven for drying the feed so that you have standardized measurements. Here is the video:

Fri Apr 03, 2015 9:09 AM in Solar energy
I have a video and a write-up (attached) of an activity I designed that crudely estimates the cost-effectiveness of photovoltaic panels. It is copyrighted, but you are allowed to make copies of the procedure for your students. I hope this helps!

Fri Apr 03, 2015 8:45 AM in Exploration Zone
I do not know how relevant this is to what you need. I have a video and write up (attached) of an activity I designed for measuring soil texture. Even though the activity does is not done outdoors (but you go there to get the samples) and does not directly measure erosion, it does measure run off activity, which is directly proportional to erosion.