PLAYgrounds: Effect of a PE playground program in primary schools on PA levels during recess in 6 to 12 year old children. Design of a prospective controlled trial
Janssen, Mirka; Toussaint, Huub M; Van Mechelen, Willem; Verhagen, Evert ALM
Collaboration and peer tutoring in chemistry laboratory education
Ding, Ning; Harskamp, Egbert
Time-out or switch?
Drs. H.A. Velderman; Dr. H.A. Everaert
School improvement within a knowledge economy: Fostering professional learning from a multidimensional perspective
F. Geijsel; S. Bolhuis (Lector); P. Sleegers




























