Pragmatism a.k.a experientialism is in many ways a daughter of realism. This view holds that knowledge changes and is relative. This is in contrast to the tenet of idealism that truth is absolute. In pragmatism, the learner in their environment are constantly changing and the learner develops knowledge through problem solving. Everything must be tested to be tentatively accepted. This concern for testing ideas is derived from the scientific method. Critical thinking is important for people who support pragmatism. In addition, the teaching focuses more on exploring ideas rather than explaining them. The focus of the curriculum is upon the learner’s experiences with an interdisciplinary approach. As they inquire and discover students are having experiences that prepare them for life. The biggest proponent of this philosophy of learning was John Dewey.