A teaching-learning procedure in early instruction in mathematics is anchored in Piagetian and Russian psychology and traces internalization processes that occur between material and mental actions, namely perceptual actions of visualization and imagination, verbal action, symbolization, and generalization. (Author/CL)

The paper reviews research efforts directed at identifying perceptual and cognitive components in reading and their dysfunction in disabled readers. Disruption in the processing sequence is identified, and a compensatory training technique for the reading disabled is described. (Author)