Sentido estructural manifestado por alumnos de 1º de bachillerato en tareas que involucran igualdades notables.

  1. Danellys Vega-Castro 1
  2. Encarnación Castro 1
  3. Marta Molina 1
  1. 1 Universidad de Granada
    info

    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

Proceedings:
Investigación en Educación Matemática. Comunicaciones de los Grupos de Investigación de la SEIEM

Publisher: Ediciones de la Universitat de Lleida

ISBN: 978-84-694-6212-6

Year of publication: 2011

Pages: 453-464

Congress: XIV Simposio de la SEIEM (Lleida, 2011)

Type: Conference paper

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Abstract

As a result of the difficulties that secondary students encounter when they have to operate with algebraic identities, we decided to explore their use of structure sense on their work on algebraic expressions that involve this type of equalities. With this aim, we proposed a written test to 33 sixteen to eighteen years old students from a high school in Granada. The test asked the students to simplify algebraic fractions and to build new expressions with the same structure than those given. Results provide information on the students' structural sense and, in particular, on how and what students visualize within an algebraic expression. As educators concerned about learning, we consider necessary that teaching promotes in students the perception of algebraic expressions from a structural point of view, and in that sense we expect this work to make a contribution.

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