Awesome+Foursome

Greeno (2006) - synthesized the cognitive and the interactional approaches in order to formulate the situative perspective, which states that learning environments must provide opportunities for individuals to participate in practice.

Blumenfeld (1997) - Traditional teacher driven lectures are not considered as effective as an environment where the teacher plays the role of a moderator while students collaborate and use tools to develop their own understanding.

diSessa (2006) - Students have two different types of ideas, which are either coherent & integrated or fragmented which can be disassembled, refined and reassembled.