query: Who pioneered activity theory?
passage: Activity theory
Activity theory (AT; Russian: Теория деятельности)[1] is an umbrella term for a line of eclectic social sciences theories and research with its roots in the Soviet psychological activity theory pioneered by Lev Vygotsky[2] , Alexei Leont'ev and Sergei Rubinstein. These scholars sought to understand human activities as systemic and socially situated phenomena and to go beyond paradigms of reflexology (the teaching of Vladimir Bekhterev and his followers) and classical conditioning (the teaching of Ivan Pavlov and his school), psychoanalysis and behaviorism. It became one of the major psychological approaches in the former USSR, being widely used in both theoretical and applied psychology, and in education, professional training, ergonomics, social psychology and work psychology.[3]
passage: Action learning
Reginald Revans is the originator of action learning. Revans' formative influences included his experience training as a physicist at the University of Cambridge. In his encounters with this talented group of scientists – several went on to win Nobel prizes – he noted the importance of each scientist describing their own ignorance, sharing experiences, and communally reflecting to learn. He used these experiences to further develop the method in the 1940s while working for the Coal Board in United Kingdom. Here, he encouraged managers to meet together in small groups, to share their experiences and ask each other questions about what they saw and heard. The approach increased productivity by over 30%. Later in hospitals, he concluded that the conventional instructional methods were largely ineffective.
People had to be aware of their lack of relevant knowledge and be prepared to explore the area of their ignorance with suitable questions and help from other people in similar positions.