The stage model recognizes five developmental phases, i.e. sensorimotor, figural, schematic, rule systems and professional (Hargreaves, 2003, 154- 155) (see figure 2)
The stage model recognizes five developmental phases, i.e. sensorimotor,figural, schematic, rule systems and professional (Hargreaves, 2003, 154-155) (see figure 2)