Classroom developmental study on the role of practical work in conceptual development, in particular in basic mechanics. E-mail: gd.thijs@dienst.vu.nl 

A thesis by Peter Dekkers

Correspondence

Dr Gerard D. Thijs

Vakgroep Algemene Vorming

Faculty of Physics and Astronomy

Vrije Universiteit Amsterdam

de Boelelaan 1081

1081 HV Amsterdam

the Netherlands

Tel. ‎31-20- 44 47984

Fax ‎31-20- 44 47988

E-mail: gd.thijs@dienst.vu.nl