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Cramer, Kathleen; Ahrendt, Sue; Monson, Debra; Wyberg, Terry; Colum, Karen – Teaching Children Mathematics, 2017
The Common Core State Standards for Mathematics (CCSSM) (CCSSI 2010) outlines ambitious goals for fraction learning, starting in third grade, that include the use of the number line model. Understanding and constructing fractions on a number line are particularly complex tasks. The current work of the authors centers on ways to successfully…
Descriptors: Common Core State Standards, Mathematics Instruction, Fractions, Numbers
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Ashkenazi, Sarit; Mark-Zigdon, Nitza; Henik, Avishai – Cognitive Development, 2009
Children in third and fourth grades suffering from developmental dyscalculia (DD) and typically developing children were asked to compare numbers to a standard. In two separate blocks, they were asked to compare a number between 1 and 9 to 5, or a two-digit number between 10 and 99 to 55. In the single-digit comparisons, DD children were…
Descriptors: Control Groups, Reaction Time, Learning Disabilities, Mathematics Skills