the experimental group increased from 7.86 (pre) to 11.40 (post) out of 17 possible points on the Adapted Fowler Test. According to Supovitz, Mayer, and Kahle (2000), teacher facilitation of inquiry-type skills, such as the ability to design a science experiment, can be increased with content-focused sustained professional development. As noted previously by Beyer and Davis (2009), teachers' modeling of scientific behaviors, such as using science process skills to design an experiment, leads to a greater understanding of science content