In this panel discussion the position will be defended that the ideal of constructionistic learning does not necessarily imply that teacher education is entirely oriented around constructionistic learning approaches as well. The thesis is that instructional skills are needed to make young teachers aware of the spectrum system- / learner control and that explicit moments of direct instruction are needed to make pupils sensitive on how to cope with procedural skills and acquire uniform directives as well. The panel presentation will illustrate how mobile devices may finally help in whispering via a Bluetooth earphone critical keywords between peer teacher students.