Florin Munteanu, PG, is a geology instructor at a community college in Bentonville, Arkansas, and writes for Biology Insights. In the lecture hall and teaching lab, he introduces undergraduate students to physical and historical geology, examining rock identification, plate tectonics, and sedimentary processes. A licensed professional geologist who received a master’s degree in geological sciences, Munteanu incorporates field mapping techniques and mineral classification into his introductory college curriculum.