5.1 Rousseau, Pestalozzi, Froebel, Herbart
Rousseau believed in the original purity of children and in the deformations that the circumstances of social life could cause them.
Pestalozzi, who created various institutions that later came to be recognized as being of great
experimental value, he accepted that education be done by natural development, according to the knowledge of psychology.
Froebel united the understanding of the educational role of entertainment.
Herbart was the first to define Psychology as a separate science from Philosophy and
Physiology for which he has been considered the "father of Psychology", although few modern psychologists would give him this title since he did not carry out any empirical work.