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Torbeyns, Joke; Peters, Greet; De Smedt, Bert; Ghesquière, Pol; Verschaffel, Lieven – British Journal of Educational Psychology, 2016
Background: In the last decades, children's understanding of mathematical principles has become an important research topic. Different from the commutativity and inversion principles, only few studies have focused on children's understanding of the addition/subtraction complement principle (if a - b = c, then c + b = a), mainly relying on verbal…
Descriptors: Elementary School Students, Grade 3, Grade 4, Elementary School Mathematics
Mammarella, Irene Cristina; Lucangeli, Daniela; Cornoldi, Cesare – Journal of Learning Disabilities, 2010
Visuospatial working memory and its involvement in arithmetic were examined in two groups of 7- to 11-year-olds: one comprising children described by teachers as displaying symptoms of nonverbal learning difficulties (N = 21), the other a control group without learning disabilities (N = 21). The two groups were matched for verbal abilities, age,…
Descriptors: Control Groups, Learning Problems, Learning Disabilities, Nonverbal Learning