Abstract
The invisible wall project analyses problem solving processes of children in grades 3-4 and 8-
9. By now, we have transcribed more than 160 interviews; as a consequence, the qualitative
interpretive methods were complemented by quantitative methods. Besides analysis of
difficulty of tasks and learning while being tested, we describe the process of problem solving
by action profiles. Using the method of divergent coding, we introduce interpretive methods
to better understand action profiles.
Birgit Burchartz & Martin Stein
The Invisible Wall Project: Problem Solving Processes Of Pupils Who Work On Problems With A Goal Which Can Not Be Reached