
Figure 1.
Geometrical shape, triangle, without edges.
Table 1. Participants and learning objects in the six case studies.

Figure 2.
The learning diagonal. The relationship between the learner's ability to learn by discerning the critical aspects offered in the learning situation in relation to their previous knowledge.
Table 2. The relation between varied and constant aspects in a dimension of variation.

Figure 3.
Schedule board.
