Oudedijk is the base for the youngest BSO-children: the Basis-bso; children from 4 to 7 years of age are divided in 2 age groups. Basis-bso I is the group of toddlers from 4- 5 years and Basis-bso II is the group of children in the range of 5-6/7 years. For both groups the facilities are of a high quality, with special, ages appropriate playing materials. The toddlers have their own ‘Arabian lounge’, creative corner with painter’s easel, children’s shop, corner for mind-games, for instance. In basis-bso II there is a girl’s corner, a living room, a Kapla-corner, a roof terrace where they can play and take care of small plants.
Both groups have their own large gymnasium or ‘playing jungle’.
The BSO-children often go outside, to the benevolent and sage playground at Oudedijk or the Kralingse Bos, with the play-farm amongst other things.