The change in students' problem solving ability in upper-level course through the application of a technological interactive environment--Tablet PC running InkSurvey--was investigated in present study. Tablet PC/InkSurvey interactive technology allowing the instructor to receive real-time formative assessment as the class works through the problem solving strategies was used to improve students' problem solving skills. The method was evaluated by developed problem solving strategies survey as well as quizzes after each chapter of eleven chapters for Advanced Electricity and Magnetism course. Results indicated that the students were used to apply problem solving strategies frequently by the end of the semester. (Contains 3 tables and 2 figures.)