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Reed, Helen C.; Gemmink, Michelle; Broens-Paffen, Marije; Kirschner, Paul A.; Jolles, Jelle – Research in Mathematics Education, 2015
Developing fluency in arithmetic facts is instrumental to mathematics learning. This study compares the effects of two practice conditions on children's fluency in simple multiplication facts. Third and fourth graders in the Netherlands (N = 282) practised in either a conventional "recall" condition where they produced answers to…
Descriptors: Multiplication, Problem Solving, Recall (Psychology), Multiple Choice Tests
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Vander Heyden, Karin M.; Huizinga, Mariette; Jolles, Jelle – Developmental Psychology, 2017
Children practice their spatial skills when playing with spatial toys, such as construction materials, board games, and puzzles. Sex and SES differences are observed in the engagement in such spatial play activities at home, which relate to individual differences in spatial performance. The current study investigated the effects of explicitly…
Descriptors: Intervention, Play, Games, Puzzles
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Reed, Helen C.; Hurks, Petra P. M.; Kirschner, Paul A.; Jolles, Jelle – Journal of Research in Childhood Education, 2015
This study investigates how shared picture book storytelling within a peer-group setting could stimulate causal reasoning in children aged 4½ to 6 years. Twenty-eight children from preschool classes of three schools were allocated to one of six groups (four to five children per group). Each group participated in six storytelling sessions over a…
Descriptors: Preschool Children, Picture Books, Story Telling, Comparative Analysis