Task-related variation in communication of mothers and their sons with learning disability
pág. 3
The effects of contingent feedback on perceived control and performance
pág. 13
What marks should I give? A model of the organization of teachers' judgments of their pupils
pág. 25
Description vs explanation and academic evaluation
pág. 41
Counting at nursery school and at primary school: Toward an instrument for diagnostic assessment
pág. 61
Cognition and artifacts: A contribution to the study of thought in relation to instrumented activity
pág. 77
Un proyecto de la Biblioteca de la Universidad Complutense de Madrid