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Evolution of Unit Fraction Conceptions in Two Fifth-Graders with a Learning Disability: An Exploratory Study
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Hunt, Jessica Heather; Tzur, Ron; Westenskow, Arla – Mathematical Thinking and Learning: An International Journal, 2016
The literature seems limited in what is known about conceptual processes that underlie evolution of students with learning disabilities (SLD) conceptions of fractions. This exploratory study examines how a foundational scheme of unit fractions (1/n) may evolve through the mathematical activity of two fifth grade girls. We analyze data segments…
Descriptors: Grade 5, Learning Disabilities, Mathematics, Mathematics Instruction
Students with Learning Disability in Math Are Left Behind in Multiplicative Reasoning? Number as Abstract Composite Unit Is a Likely "Culprit"
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Tzur, Ron; Xin, Yan Ping; Si, Luo; Kenney, Rachael; Guebert, Adam – Online Submission, 2010
This study addressed the problem of why students with learning disabilities in mathematics too often fail to develop multiplicative and divisional concepts/operations. We conducted a constructivist teaching experiment with 12 students (nine 5th and three 4th graders). This report focuses on three students' conceptual progress, particularly on…
Descriptors: Constructivism (Learning), Learning Disabilities, Grade 4, Mathematics Instruction
Fine Grain Assessment of Students' Mathematical Understanding: Participatory and Anticipatory Stages in Learning a New Mathematical Conception
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Tzur, Ron – Educational Studies in Mathematics, 2007
This study addressed a twofold problem--the soundness of a theoretical stage-distinction regarding the process of constructing a new (to the learner) mathematical conception and how such distinction contributes to fine grain assessment of students' mathematical understandings. As a context for the study served the difficult-to-grasp concept of…
Descriptors: Program Effectiveness, Foreign Countries, Grade 3, Mathematical Concepts