Constructivism starts in the head. Jean Piaget believed that knowledge is constructed by the learner. Everyone experiences things in a different way therefore digesting information differently. For example if  a girl was sitting in a classroom listening to a lecture about women's rights  she would reflect back to her previous knowledge of the subject and compare the new information with the old. She may not even take the new information as valuable because it doesn't fit with her belief systems. She may also combine the two and come up with a new conclusion. A Male student may be hearing  the information for first time and may not even be able to swallow the ideas. He may not believe women should have rights. The information may not be meaningful to him.