Dineke Tigelaar is an Assistant Professor at the ICLON Leiden University Graduate School of Teaching. She graduated in Educational Sciences and in 2005 she defended her PhD-thesis in Maastricht University on the design and evaluation of a teaching portfolio. She has been involved in various projects on professional learning and assessment of teachers and curriculum development. Her major research interests pertain to professional learning and assessment in various contexts and domains of expertise. Currently, she supervises four PhD students.
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