, Johann2024-09-042024-09-042016-12-01Teaching Mathematics and Computer Science, Vol. 14 No. 2 (2016) , 195-2201589-7389https://hdl.handle.net/2437/379804Metacognition has one of the highest effect sizes concerning successful learning. However metacognitive activities during task solving and problem solving are not directly obvious. But they can appear by writing someone's thoughts down. The following analysis, which focusses on the level of argumentation as well as on the way of derivation, shows that the quality of representation is an essential condition for the possibility of metacognition.application/pdfmetacognitionexternal and internal representationscompetencieseducational standardsproblem solvingargumentationDarstellungen und Vorstellungen und ihre Bedeutung für eine wirksame Metakognition beim Problemlösen und BegründenfolyóiratcikkOpen AccessJohann Sjutshttps://doi.org/10.5485/TMCS.2016.0423Teaching Mathematics and Computer Science214Teach. Math. Comp. Sci.2676-8364