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Copyright of Educação Matemática Pesquisa is the property of Pontificia Universidade Catolica de Sao Paulo, Programa de Estudos Pos-Grad. em Educacao Matematica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper investigates how STEM education is mobilized in the development of mathematical modeling activities with experimentation. For this, it was based on a theoretical framework that considers elements of experimentation, mathematical modeling, and the integration of STEM education. The activities analyzed were developed by three groups of students from a 9th-grade class of elementary school from a private school in the state of Paraná, in the mathematics subject, in the year 2018. In these activities, gathered in groups, the students chose the theme of experimentation to be carried out, defined a problem, collected empirical data, performed a mathematical approach, and obtained a solution to the problem. For the analyses, audio and video recordings and written records of reports delivered by students were used. Through qualitative analysis, inspired by the research design, it became evident that experimentation was configured as a structure that allowed the integration between STEM areas through studies and research on the studied phenomena, manipulation of software for curve adjustments, use of laboratory equipment and its implications for the experimentation carried out, and on the mathematical content necessary to obtain a solution to the problem. [ABSTRACT FROM AUTHOR]

This paper presents an experimentation based on the study by investigation with emphasis in the Theory of the Graphs. The proposal presented in this paper focuses on the elaboration of an essay on the insertion of the Dijkstra Algorithm in Mathematics Education. In order to elaborate this, it is proposed the development of an activity based on study by investigation, where the students were instigated to solve certain problems totally constructed with real data and with information of the scope of the school. During the development of this experiment, peculiarities appeared that allowed us to validate the insertion of an approach based on study by investigation and finally observing the importance of the study of Graph Theory in Basic Education. [ABSTRACT FROM AUTHOR]

Copyright of Educação Matemática Pesquisa is the property of Pontificia Universidade Catolica de Sao Paulo, Programa de Estudos Pos-Grad. em Educacao Matematica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper analyses and reflects on the results of the implementation of a teaching sequence in statistics involving quantitative variables and the role of representation records in the transnumeration of raw data in the box-plot. It is a descriptive qualitative field research, covering, as a methodology, the stages of the investigative cycle, in which 31 high school students participated. These students analysed their data on the relationship between study habits and performance in the course of mathematics. As a result, it was possible to verify the complexity of working with quantitative variables, and the complexity of constructing the boxplot with real data in the classroom. The strategies adopted contributed to the understanding of data and statistical concepts in context. Furthermore, the study revealed that the methodology adopted led students to engage in the activity, raised awareness on the factors that interfere with school performance, the importance of proper habits, and the frequency of study for learning. [ABSTRACT FROM AUTHOR]

Copyright of Educação Matemática Pesquisa is the property of Pontificia Universidade Catolica de Sao Paulo, Programa de Estudos Pos-Grad. em Educacao Matematica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper analyzes the perspective under which students of Youth and Adult Basic Education (EJA) understand and outline possibilities and interdictions to achievment of an integrated curriculum proposal in Mathematics classes. The empirical material was produced by monitoring a PROEJA class of a Federal Institute (IF) during two academic semesters, recording classes, collecting written productions of students and consultating documents of the institution and of the field of Youth and Adult Education (EJA). We analyse discursive positions that such students assume in the classroom interactions, when simulations are attempted to promote an integration between mathematics curriculum and professional life -- that PROEJA proposal foresees, but school has not yet known how to do. [ABSTRACT FROM AUTHOR]

This paper presents a proposal for the insertion of non-Euclidean geometry in basic education, especially in mathematics classes in primary and secondary education. For the study, the taxicab geometry was chosen because it is easy to understand and because it allows the connection with other contents of basic education, for example, the model of urban geography is directly related to the students' daily life. As suggestions for the construction of this concept were elaborated five activities that led the students to explore this geometry, evidencing the differences between the Euclidean geometry and the taxicab geometry, considered non- Euclidean, to present a differentiated metric. In the last activity, a problem was proposed in which the students should apply the concept of circumference from the point of view of the two geometries to solve it. In spite of being something new for the students, it was possible to perceive a great interest, to make relation with their daily life, besides having a satisfactory result with respect to the rescue of concepts of Euclidean geometry. [ABSTRACT FROM AUTHOR]

An introduction is presented in which the editor discusses various reports within the issue on topics including political aspects of basic education in Brazil, relationship between probability and risk, and attitude of Statistics teachers in Brazil.

This paper is part of the process of research that the authors are making to better understand the motives s and possible methodological alternatives and teaching strategies that can be used in teaching and learning of Mathematics in Primary Education. The latest indices and sampling presented by government agencies have shown that mathematics related the results have not been very encouraging and that urgent actions need to be taken to reverse this scenario. From the term context, the authors begin the search process demystifying the term and its use. Present theoretical contributions, nurture moments of reflection to better understand the problem and offer methodological alternatives and didactic-pedagogical strategies that can be used in mathematics in compliance the request of students and in keeping with TDIC -Communication and Information Digital Technologies already present in everyday classrooms and mostly out of it. To contextualize this application and give greater significance, exemplifying through Digital Object Learning and suggest possibilities of use. [ABSTRACT FROM AUTHOR]