For more course tutorials visit www.edu673.com Fluid and Fixed Mindsets. Souza and Tomlinson (2011) explain, "Mindsets are the assumptions, expectations, and beliefs that guide our behavior and our interaction with others"(p. 19). A teacher's mindset is of utmost importance in the differentiated classroom. Think about your least favorite teacher and consider what their mindset must have been. Share how you felt in the class and how the teacher's mindset