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The Keller Plan (also called The Personalized System of Instruction) is an instructional method introduced by Fred Keller, J. Gilmour Sherman, and other researchers in the 1960s.1) This individualized learning method was oriented on improvement of high school learning.
Keller's idea was to make higher education teaching more adjusted to individual needs. His method was first introduced in 1962 in order to help establishing a Department of Psychology at the University of Brasilia and design a course for the students. After additional modifications, the key aspects of his method can be described as follows:2)