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Watson, Silvana Maria R.; Lopes, João; Oliveira, Célia; Judge, Sharon – Journal for Multicultural Education, 2018
Purpose: The purpose of this descriptive study is to investigate why some elementary children have difficulties mastering addition and subtraction calculation tasks. Design/methodology/approach: The researchers have examined error types in addition and subtraction calculation made by 697 Portuguese students in elementary grades. Each student…
Descriptors: Error Patterns, Foreign Countries, Elementary School Students, Mathematics Instruction
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Cawley, John F.; Foley, Teresa E. – Learning Disabilities: A Multidisciplinary Journal, 2001
This article argues that the reason the mathematics performance of students with mild disabilities is so limited is the mathematics. Using illustrations from subtraction, the article proposes number sense be a primary goal and that within the realm of number sense, big ideas be included among the dependent variables. (Contains references.)…
Descriptors: Educational Strategies, Elementary Secondary Education, Learning Disabilities, Mathematical Concepts
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Pellegrino, James W.; Goldman, Susan R. – Journal of Learning Disabilities, 1987
An overview is presented of information processing analyses of knowledge and performance in three areas of the elementary mathematics curriculum: basic addition and subtraction facts, complex procedures such as multicolumn subtraction, and the solution of word problems. Theories of the knowledge associated with "expert" performance are discussed.…
Descriptors: Academic Achievement, Addition, Cognitive Processes, Elementary Education