Answer:
Gene is taking a Piagetian approach, while Fred is a proponent of the behaviorist approach.
Explanation:
Piaget's approach and studies centers on the fact that a child goes trough certain cognitive stages, in which a development occurs. These are:
Meanwhile, a behaviorist approach centers on the fact that what matters is what we can see which is the behavior, instead of only creating speculation about the mind since it is not tangible.