The ICS-Pedagogic Concept is based on different insights. At the following links you will find the most significant aspects, beside this, the ICS-Concept used the insights of excellent concepts which are already proofed in the praxis!
Pedagogic of the Cooperative Learning Method
Norman Green Video:
Prof. Stern, ETH Zürich
Prof. Spitzer, ZNL-Ulm
About Neuro Science (learning):
Unesco Paper of modern teaching
About Pisa:e.g. Finland
About Pisa general:
About teachers in immersion classes: Tips!!!