“Siegfried E. Engelmann is a passionate philosopher who has dedicated the past forty years to advancing the theory and practice of instruction…According to Contemporary authors: New revision series (1998), Therese and Siegfried raised four children. Following graduation Engelmann worked from 1955 to 1960 as a self-employed investment counselor. From 1960 to 1964 he served as the creative director, vice-president and holder of various other positions in advertising agencies.”
Biography excerpted from Athabasca University
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