An apparatus for demonstrating cardiac device function and patient cardiac function over time, including a board with a coordinate system representing time, the board having one or more colored areas representing cardiac device function and patient cardiac function and a legend. Assembled magnetically to the board are objects sized for alignment with the coordinate system representing cardiac device function and including colors matching the one or more colored areas of the magnetic board and the legend. The assembled object and board demonstrate cardiac device function over time. The present subject matter also includes a method for demonstrating cardiac device function and patient cardiac function over time, including placing the objects on a magnetic board in alignment with the coordinate system and one or more colored areas representing cardiac device function and patient cardiac function to demonstrate cardiac device function over time.