Conservation an aspect of children's cognitive development a look at three Philippine studies based on Piaget's theory of the child's conception of number. (Manila Research Center, Philippine Normal College, 1980)
A study of the development of children's ideas of conservation of quantity / Amanda H. Tayag, Juana R. Cumagun and Lorna Z. Segovia. -- The development of some of the basic number concept in children aged 4 to 9 / Amanda H. Tayag. -- Differences in the achievement of concepts of conservation among school children across socio-cultural milieus / Josefina A. Beltran.
Mimeographed.
Keywords: Conservation (Psychology); Cognition in children -- Philippines