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DEVELOPING THE NUMBER SENSE OF A THIRD-GRADE STUDENT WITH DYSCALCULIA
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PhD Dissertation_ Nur Banu Duran.pdf
Date
2025-1-02
Author
Duran, Nur Banu
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This study investigates the development of number sense of a 3rd-grade student with dyscalculia through a series of teaching experiment sessions incorporating subitizing, place value, and addition activities. A 3rd-grade student diagnosed with specific learning difficulties and attending a special education institution in Ankara was selected as the participant of the study. Data were collected from multiple sources, including pre-test and post-test interviews, video recordings of teaching experiment sessions, student worksheets, and field notes. The results of the qualitative analysis revealed that the progressively structured teaching experiment sessions guided by the zone of proximal development and Dienes' Mathematical Learning Theory contributed to the development of number sense of the third-grade student with dyscalculia. The findings revealed that the student developed conceptual subitizing skill as he progressed through the teaching experiment sessions. In addition, there was a significant improvement in his understanding of place value and addition with carry. The support provided during the teaching experiment sessions also enabled the student to use reasoning strategies. It was observed that subitizing skill and place value understanding supported addition. Therefore, it was concluded that sequentially structured teaching experiment sessions in the order of subitizing, place value, and addition could be beneficial for students with dyscalculia. In that respect, the study has valuable implications for teachers and researchers who aim to develop the number sense of students with dyscalculia.
Subject Keywords
Dyscalculia, Mathematical Learning Difficulty, Number Sense, Teaching Experiment
URI
https://hdl.handle.net/11511/113533
Collections
Graduate School of Natural and Applied Sciences, Thesis
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N. B. Duran, “DEVELOPING THE NUMBER SENSE OF A THIRD-GRADE STUDENT WITH DYSCALCULIA,” Ph.D. - Doctoral Program, Middle East Technical University, 2025.
