“…Ideal learning processes, as described in the literature about constructivism, in the psychology of learning and in theories about powerful learning environments, are the active, cumulative, constructive, goal-directed, diagnostic, reflective, discovery oriented, contextual, problem oriented, case based, social and intrinsically motivated kinds of learning. Shuell (1988) formulated the main characteristics of good learning: "....(constructive) learning is an active, constructive, cumulative and goal directed process.... It is active in that the student must do certain things while processing incoming information in order to learn the material in a meaningful manner.…”