Teaching the general psychology course provides instructors with the opportunity to invite students to explore the dynamics of behavior and mental processes through the lens of theory and research. Three innovative writing assignments were developed to teach students to think like a psychologist, operationalized as enhancing critical thinking, applying research concepts, and resisting plagiarism. The assignments were evaluated with two samples of general psychology students. In Sample 1, student reactions to the assignments were uniformly positive. In Sample 2, students were assessed directly on their critical thinking skills using a set of three scenarios. An increase in students' ability to think critically was found. Therefore, these assignments were successful in helping develop our students' ability to think like a psychologist.