During the past few decades, several interconnected research traditions have paid more and more attention to the process of educational design. Educational design research and other design-oriented methods seek solutions for complex educational problems through systematic, iterative, and continuing process of design, development, and evaluation of educational practices. This special issue presents six articles including research on educational design research methodology as well as research utilizing educational design research methods.

Editors
Johannes Pernaa, The Unit of Chemistry Teacher Education, Department of Chemistry, Faculty of Science, University of Helsinki, Finland
Veli-Matti Vesterinen, Department of Chemistry, University of Turku, Finland