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Direct linkSzilagyi, Janka; Clements, Douglas H.; Sarama, Julie – Journal for Research in Mathematics Education, 2013
This study investigated the development of length measurement ideas in students from prekindergarten through 2nd grade. The main purpose was to evaluate and elaborate the developmental progression, or levels of thinking, of a hypothesized learning trajectory for length measurement to ensure that the sequence of levels of thinking is consistent…
Descriptors: Elementary School Mathematics, Thinking Skills, Cognitive Processes, Young Children
Lukacs, Agnes; Pleh, Csaba; Racsmany, Mihaly – Journal of Child Language, 2007
We present data on the language of space in Hungarian individuals with Williams syndrome (WS; 19 in the first, 15 in the second study, between 8;0 and 21;11) and a verbal control (VC) group of typically developing (TD; 19 in the first, 15 in the second study, between 3;5 and 10;7) children from: (1) a study of elicited production and comprehension…
Descriptors: Mental Retardation, Spatial Ability, Interaction, Foreign Countries
