Effectively designed data visualizations allow viewers to use their powerful visual systems to
understand patterns in data across science, education, health, and public policy. But …

Teachers notice through the lens of their professional knowledge and views. This study
hence focuses not solely on teachers' noticing, but also on their knowledge and views …

In this paper, we examine student success on three variants of a test item given in different
representational formats (verbal, pictorial, and graphical), with an isomorphic problem …

The flexible and adaptive use of strategies and representations is part of a cognitive
variability, which enables individuals to solve problems quickly and accurately. The …

​ Die Fähigkeit, verschiedene Darstellungsformen zu nutzen und zwischen ihnen zu
wechseln, ist in den Bildungsstandards und Lehrplänen der Grundschule fest verankert …

Das Buch stellt die Entwicklung und den Einsatz eines Rasch-skalierten Testinstruments im
Bereich des Funktionalen Denkens für die Einführungsphase der gymnasialen Oberstufe …

The ability to switch between various representations is an invaluable problem-solving skill
in physics. In addition, research has shown that using multiple representations can greatly …

To make complex mathematics concepts accessible to students, teachers often rely on
visual representations. Because no single representation can depict all aspects of a …

Largely absent from the emerging literature on flexibility is a consideration of experts'
flexibility. Do experts exhibit strategy flexibility, as one might assume? If so, how do experts …

Mathematische Begriffe sind abstrakter Natur, sie bedürfen einer Materialisierung. Diese
Materialisierungen können jedoch stets nur Zeichen für den abstrakten Begriff sein …