El Uso de Las Letras como Fuente de Errores de Estudiantes Universitarios en la Resolución de Tareas Algebraicas
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In this paper, a study with 194 students of the Centro Universitario de la Costa Sur in Autlan, Mexico, found that more than half of the students at this level of education do not show difficulties in evaluating letters, handling them as objects or considering their presence, however, it does reveal deficiencies in the discernment to understand the use and meaning of the letters as unknown of specific value, numbers, and variables such as widespread.Abstract:
The present investigation is a study with 194 students of the Centro Universitario de la Costa Sur in Autlan, Mexico. It aims to analyze the most common mistakes that first semester students show in the productions, to operate with different meanings that may have letters in algebra and, based on these results, establish its location within one of the four categories of understanding in the use and meaning of letters in algebra proposed by Kuchemann (1980). The results show that more than half of the students at this level of education do not show difficulties in evaluating letters, handling them as objects or considering their presence, however, it does reveal deficiencies in the discernment to understand the use and meaning of the letters as unknown of specific value, numbers, and variables such as widespread.read more
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A study of concrete and formal operations in school mathematics: a Piagetian viewpoint, by K. F. Collis. Pp 205. $10 Australian. 1975. SBN 0 85563 126 0 (Australian Council for Educational Research)
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References
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Students' understanding of algebraic notation: 11-15
Mollie MacGregor,Kaye Stacey +1 more
TL;DR: The authors found that the majority of students up to age 15 seem unable to interpret algebraic letters as generalised numbers or even as specific unknowns Instead, they ignore the letters, replace them with numerical values, or regard them as shorthand names.
Students' understanding of algebraic notation:
Mollie MacGregor,Kaye Stacey +1 more
TL;DR: Evidence is presented that some common misinterpretations can be explained by considering factors more accessible than cognitive level to diagnosis and possible remediation, and that difficulties in learning to use algebraic notation have several origins.