This article describes 14 problem-based group activities for a sensation and perception course. The intent was to provide opportunities for students to practice applying their knowledge to real-world problems related to course content. Student ratings of how effectively the activities helped them learn were variable but relatively high. Students rated their ability to apply their knowledge of sensation and perception to real-world issues substantially higher at the end of the course than at the beginning. Furthermore, student performance on an objective assessment of knowledge was significantly higher at the end of the semester than at the beginning. The results provide preliminary evidence that it is possible to develop an effective sensation and perception course that incorporates problem-based learning activities. (Contains 1 table and 4 notes.)