The learning of logarithmic functions by 12th-grade students based on modelling tasks

The relevance that the application of what is learned in Mathematics to everyday situations has in student learning has led us to develop an experiment on teaching the logarithmic function using modelling tasks. Based on this experiment, we intend to characterize the activities of 12th-grade studen...

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Main Authors: Samuel Araújo, Floriano Viseu, Ana Jacinta Soares, Isabel Leite
Format: Article
Language:English
Published: Universidad Politécnica Salesiana 2022-07-01
Series:Alteridad : Revista de Educación
Subjects:
Online Access:https://ingenius.ups.edu.ec/index.php/alteridad/article/view/5959
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author Samuel Araújo
Floriano Viseu
Ana Jacinta Soares
Isabel Leite
author_facet Samuel Araújo
Floriano Viseu
Ana Jacinta Soares
Isabel Leite
author_sort Samuel Araújo
collection DOAJ
description The relevance that the application of what is learned in Mathematics to everyday situations has in student learning has led us to develop an experiment on teaching the logarithmic function using modelling tasks. Based on this experiment, we intend to characterize the activities of 12th-grade students in the performance of modelling tasks concerning topics of logarithmic functions and identify the difficulties they may present while solving these tasks using a graphing calculator. When adopting a qualitative and interpretative approach, data were collected through students' written records while solving the proposed tasks using the graphing calculator. The results indicate that the students show that the modelling tasks promoted group work and their interest and participation in class. During the exploration of the tasks, students performed activities that result from the accomplishment of modelling phases such as understanding the statement of the task, organizing and analyzing data, building and validating the model that best fits the data, and exploring the model, either in the introduction of the logarithmic function and its derivative or in the consolidation of the acquired knowledge. In such activities, some students presented difficulties regarding the properties and characteristics of the logarithmic function and its graphic and symbolic representation. The phases of the modelling cycle also made it difficult for students to use the graphing calculator, namely in performing statistical regressions and setting the visualization window. 
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spelling doaj.art-f20971dd0d1e46eba67c89a382afe4302022-12-22T00:33:34ZengUniversidad Politécnica SalesianaAlteridad : Revista de Educación1390-325X1390-86422022-07-0117210.17163/alt.v17n2.2022.05The learning of logarithmic functions by 12th-grade students based on modelling tasksSamuel Araújo0Floriano Viseu1Ana Jacinta Soares2Isabel Leite3Lycée Français International de PortoUniversidade do MinhoUniversidade do MinhoEscola Secundária de Vila Verde The relevance that the application of what is learned in Mathematics to everyday situations has in student learning has led us to develop an experiment on teaching the logarithmic function using modelling tasks. Based on this experiment, we intend to characterize the activities of 12th-grade students in the performance of modelling tasks concerning topics of logarithmic functions and identify the difficulties they may present while solving these tasks using a graphing calculator. When adopting a qualitative and interpretative approach, data were collected through students' written records while solving the proposed tasks using the graphing calculator. The results indicate that the students show that the modelling tasks promoted group work and their interest and participation in class. During the exploration of the tasks, students performed activities that result from the accomplishment of modelling phases such as understanding the statement of the task, organizing and analyzing data, building and validating the model that best fits the data, and exploring the model, either in the introduction of the logarithmic function and its derivative or in the consolidation of the acquired knowledge. In such activities, some students presented difficulties regarding the properties and characteristics of the logarithmic function and its graphic and symbolic representation. The phases of the modelling cycle also made it difficult for students to use the graphing calculator, namely in performing statistical regressions and setting the visualization window.  https://ingenius.ups.edu.ec/index.php/alteridad/article/view/5959Mathematicslogarithmic functionslearningmathematical modelling
spellingShingle Samuel Araújo
Floriano Viseu
Ana Jacinta Soares
Isabel Leite
The learning of logarithmic functions by 12th-grade students based on modelling tasks
Alteridad : Revista de Educación
Mathematics
logarithmic functions
learning
mathematical modelling
title The learning of logarithmic functions by 12th-grade students based on modelling tasks
title_full The learning of logarithmic functions by 12th-grade students based on modelling tasks
title_fullStr The learning of logarithmic functions by 12th-grade students based on modelling tasks
title_full_unstemmed The learning of logarithmic functions by 12th-grade students based on modelling tasks
title_short The learning of logarithmic functions by 12th-grade students based on modelling tasks
title_sort learning of logarithmic functions by 12th grade students based on modelling tasks
topic Mathematics
logarithmic functions
learning
mathematical modelling
url https://ingenius.ups.edu.ec/index.php/alteridad/article/view/5959
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