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Mathematics in School	1
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Bar, Varda	1
Orton, Tony	1
Thorburn, Pauline	1

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One More Learning Difficulty.

Peer reviewed

Thorburn, Pauline; Orton, Tony – Mathematics in School, 1990

Investigated was the learning of the mathematical uses of "more,""fewer," and "less" at a very early stage in the development of ideas. (CW)

Descriptors: Cognitive Development, Cognitive Structures, Conservation (Concept), Elementary Education

Children's Views about the Water Cycle.

Peer reviewed

Bar, Varda – Science Education, 1989

Israeli children's (kindergarten to grade nine) explanations about the water cycle are described. Reports the children's views about the source of clouds and the mechanism of rainfall. It was concluded that understanding evaporation is a necessary condition for explaining a mechanism of rain containing the ideas of condensation and heaviness. (YP)

Descriptors: Climate, Concept Formation, Conservation (Concept), Earth Science