Russ Colson

Igneous Cooling Rates, Crystal Size, and NOT Getting the 'Right' Experimental Results part of Earth Educators Rendezvous:Previous Rendezvous:Rendezvous 2016:Program:Teaching Demonstrations:Thursday B
The organic compound thymol, with a melting temperature of 48°C, can be used to give students an opportunity to experiment with the effects of cooling rate on crystal size. We examine how a cookbook lab, which ...

Correlations between Teacher Preparation and Conceptual Understanding in the Earth Sciences part of Earth Educators Rendezvous:Previous Rendezvous:Rendezvous 2016:Program:Oral Sessions:Monday A
Teachers of earth science in Minnesota and North Dakota have a wide range of preparational backgrounds. To provide insight into factors influencing preparation, we have administered an essay test to inservice and ...