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Anxiety is a state of mind of intense worry that can affect students' performance both positively and negatively. Internationally, recent studies show high percentages of students diagnosed with anxiety and depression. This paper seeks to quantitatively analyze how anxiety is related to academic performance in Ecuadorian students. An Ordinary Least Squares (OLS) model with school fixed effects estimates an educational production function. The results confirm that, up to certain levels of anxiety, students' scores improve. However, once anxiety levels are elevated -a threshold that is higher for male students-scores are negatively affected. These findings are relevant for two reasons. First, during adolescence, experiences and interpersonal relationships impact personality construction and influence the development of cognitive, non-cognitive and emotional skills. Second, given the current post-pandemic situation, in which anxiety is a frequent scenario. This research concludes that it is necessary to reflect on the importance of rethinking pedagogical processes in schools and to analyze strategies to introduce mental health in the school curriculum. [ABSTRACT FROM AUTHOR]

In this paper, we describe the elements that characterize the teaching of Mathematics in the Ave María Schools, founded and run by Andrés Manjón in Granada between 1889 and 1923. He stood up for a peculiar model of integrated education, based on Christian values, and he also developed his own methodological principles, similar in many ways to those of the emerging École Nouvelle. The selection and analysis of several sources has allowed us to set his teaching of Mathematics within this pedagogical framework and has suggested us the idea that the strategies used by Manjón in order to teach Arithmetic and Geometry could be innovative at that time and, perhaps, valuable from the point of view of contemporary Didactics. [ABSTRACT FROM AUTHOR]

“The Relationship between Intuition and Invention in Mathematics: A Consideration from the Points of View of Henri Bergson and Henri Poincaré”. The French authors Henri Bergson and Henri Poincaré call attention upon intuition and its relationship to mathematical invention. Both authors believe that intuition is an intellectual process that requires individual experience both physical and mathematical. They also claim that the results of intuition are to be observed in the surface of consciousness, i.e. in mathematical language. Additionally, both authors believe that intuition is necessary for mathematical invention. This paper shows the coincidences between Bergson and Poincaré concerning the relationship between intuition and invention. It investigates how its definition leads to the understanding of intuition as a process and, finally, how the idea of a dynamic scheme—introduced by Bergson to explain invention—is implicitly present in Poincaré’s thought. [ABSTRACT FROM AUTHOR]

In this paper we study the levels of anxiety towards mathematics teaching in a group of Spanish students for primary education teaching through the MATAS survey. The data collected in the survey is analyzed to determine if there are significant differences between the levels of anxiety when the sample is differentiated according to three criteria: if they have taken any previous mathematics subject, if they have any previous degree in education and if they have teaching experience in mathematics. As a result, it is obtained that most of the group of students present medium or high levels of anxiety towards the teaching of mathematics and that those who have no teaching experience or no previous degree present significantly higher mean levels of anxiety. [ABSTRACT FROM AUTHOR]

This paper presents the current reasons for getting involved in the math class of an eleventh-grade student who states that she has never liked math classes in her previous years. For this reason, it is developed a contextualization e of the student, analyzing and reporting what happened with the math class and her stance when this person is invited to develop a mathematical modeling environment from the socio-critical perspective. This document is part of the results obtained in the master's thesis, which adopts a critical research methodology and an analysis of the discourses of the students who were involved in the created environment. The results found that students have a variety of reasons for getting involved in the math class, in which future, context and intentions of the students are important. [ABSTRACT FROM AUTHOR]

This paper presents the results of the management of a didactic device formulated by a Mathematics male and Biology female teacher from a secondary school in which they sought a codisciplinary study. Based on the Anthropological Theory of the Didactic, the results of an exploratory study that sought to characterize the management of a didactic device for the study of plant growth in secondary school are reported; In particular, we analyze the relevance of mathematical knowledge in its development. The main results indicate that the study enabled the protagonists to be the students: they formulated and answered questions, achieving autonomy and responsibility for the search for information in various media; however, mathematical knowledge did not occupy a prominent place during the study. [ABSTRACT FROM AUTHOR]

This paper explores the relationship between students' perceptions of the type of teaching they experience in mathematics [more or less student centred] and their reported emotions, self-concept and disposition. It also addresses the question of whether there are differences in this relationship for girls and boys. It uses survey data from almost 300 year 7 Chilean students, clustered in 8 different classrooms. A correlational analysis suggests that there is a positive significant association between how student centred the teaching is perceived to be and students' more positive attitudes. Nevertheless, this effect was independent of sex, suggesting that more student-centred teching do not necessarily offer an advantage for girls, but are positive for both, boys and girls. [ABSTRACT FROM AUTHOR]

The definite integral is a central concept in the applications of calculus to experimental sciences and engineering, and consequently, a relevant didactic research topic. This paper analyses the different meanings of the definite integral by applying theoretical tools of the ontosemiotic approach to mathematical knowledge and instruction, particularly, the interpretation of meaning in terms of systems of operational and discursive practices related to the resolution of types of problems and the algebraization levels model of mathematical activity. Types of problem-situations and configurations of practices, objects, and processes are identified that allow us to characterize and articulate the various partial meanings of the definite integral (geometric-intuitive, as a limit of Riemann sums and cumulative function) as well as its extensions to the case of the double integral (as a particular case of the multiple) and the line, from the most intuitive to the most formal. The analysis allows us to identify the generality degrees of the objects of integral calculus and the role of algebra in the characterization of the meanings of the definite integral, which must be considered in the planning and management of the processes of teaching and learning of integral calculus in engineering degrees. [ABSTRACT FROM AUTHOR]

This paper sets out different contexts where mathematics helps create a thinking and reasoning habit, with special emphasis on problem solving. Intelligence is thought to be connected to problem solving ability and so we are interested in the relationship between intelligence and mathematical problem solving. These problems will be posed in a broad sense, not just considering classical written problems but also problems that appear in situations such as chess, magic tricks, and board games. These settings motivate students better, solving them requires different approaches, and they relate to other fields of knowledge. This paper reports on our experience of posing problems and reasoning with gifted students through magic tricks based on mathematical ideas and we give some examples of the activities we have done with them. We also present recreational mathematics as a discipline that promotes student motivation and increases curiosity and inquiry. We show some ideas from Miguel De Guzmán, Martín Gardner, and Raymond Smullyan that have been used in different frameworks. We describe some games that have been shown to be useful tools for creating reasoning schemas, presenting the particular case of chess as an educational tool. Finally, we set out some conclusions about the introduction of new materials, methods, and ideas for solving problems and we formulate a proposal for continuing this work and applying it in the classroom. [ABSTRACT FROM AUTHOR]

This paper presents a theoretical model for the study of mathematical talent, grounded in the Anthropological Theory of Didactics (ATD) and the notion of creativity. This model proposes two components of creative mathematical activity: the mathematical component, which supports mathematical techniques; and the creative component, defined by four functions: producing new techniques, optimizing techniques, considering tasks from different angles, and adapting a technique. Based on the theoretical model and a reference epistemological model on infinite sequences, a learning design comprising six problem situations was developed and then implemented in an institution established to foster mathematical talent. The analysis of two tasks performed by a pair of children offers a case study that illustrates how tackling challenging tasks of the same kind, in a favorable institutional setting, makes it possible to develop mathematical talent. [ABSTRACT FROM AUTHOR]

This paper aims to explain Leibniz's opinion according to which creation and demonstration in mathematics are founded upon a certain general logic that is conversant not only with syllogisms and prosyllogisms, but also with the rules of particular progressions or functions. If this is the case, there would be a universal mathematics or good characteristics, bringing several consequences on what is thought to be the foundation and range of human knowledge. We intend to do such an inquiry mainly using the fictional clash between Theophilus, that stands for Leibniz himself, and Philalethes, that stands for the English philosopher John Locke, regarding the alleged impossibility of squaring the circle claimed by the latter, that is portrayed in the New Essays. [ABSTRACT FROM AUTHOR]

This article examines how effective education institutions improve educational achievement, regardless of students' socioeconomic backgrounds. The paper utilizes a multilevel model using data from the Third Regional Comparative and Explanatory Study (TERCE) for Ecuadorian students in reading and mathematics. Findings show that between 31 and 52% of the variation in test results is due to differences between schools, thus underlining the importance of the compensatory effect of schools in promoting equality of opportunity. [ABSTRACT FROM AUTHOR]

This paper presents the theoretical and methodological conceptions of designing teaching tasks to promote the contextualization of lessons in Mathematical Analysis in educational Mathematics. It is aimed at conceiving teaching tasks, by adopting a pedagogical professional approach, to promote this contextualization. Theoretical (historical-logical, analytic-synthetic, and inductive-deductive) methods of research were used. Students, graduates, and experienced professors were interviewed in order to collect data on professors' performance in promoting the contextualization of lessons in Mathematical Analysis in educational Mathematics. Additionally, such documents as syllabuses, regulations, scientific papers, doctoral and master's theses were analyzed. This paper contributes to the contextualization of lessons in Mathematical Analysis in educational Mathematics through the pedagogical professional approach. [ABSTRACT FROM AUTHOR]

This paper, a product of the research entitled "Mathematics teachers' Narratives and Subjectivities about their professional experience", presents matters related to mathematics teachers' training. Unveiling the mathematics teachers' subjectivities in narrative wefts which are made about their professional experiences and their formation trajectories is the main purpose of this inquiry. It assumes the narrative perspective in its epistemological and methodological dimension, in a way which claims the narrative thinking as a way of the knowing of the world and self-knowing. The analysis of the considered investigation antecedents and the voices of teachers who narrate themselves allowed to assume the training mathematics teachers' curricula as a criticism object, so it became a first inquiry result. Thus, the curricula were interrogated in connection with: a) The logic-scientific thinking hegemony and ignoring the narrative thinking contributions in the training processes; b) the absence of intentional actions for understanding the subjectivation modes which underlie the formative processes; c) the identity configurations and subjectivities that underlie in the formation trajectories. It concludes that the hegemony of a logic-scientific thinking way and ignoring the narrative knowing way in the mathematics teachers' training processes show the formation as decontextualized, apolitical, and ahistorical. Besides, the logic-scientific thinking configures a knowing way which prevails the truth search and shows faith in rational knowledge as the most powerful force for the world understanding and the self-understanding. [ABSTRACT FROM AUTHOR]

Requirements Engineering is considered the most important phase of the life cycle of software products because it specifies the needs of the customers, and it is also the basis for the execution of the other phases of software engineering. The models currently used to perform the requirements elicitation have been proposed and widely documented, but they are focused only on the techniques to collect information, disregarding the activity of properly documenting this information. Moreover, to structure the requirements specification, natural language continues to be used as a means of communication and understanding with the customer. Due to the ambiguities caused by this language, its interpretation becomes difficult, and this leads to reprocesses in the later stages of the software life cycle. According to the above, it is necessary for software development organizations to consider formalizing the process of requirements elicitation if they wish to make their development process more efficient. A literature review is carried out in this paper to determine the process and evolution of the formal methods from the requirements engineering perspective. [ABSTRACT FROM AUTHOR]

This paper presents, from an introductory point of view and oriented to non-experts in network theory, the fundamentals of graphs and networks that allow projecting information about cultural networks in a formal context. It also describes some of the most common measures and tools to design quantitative mechanisms for the subsequent analysis of these networks. This article does not pretend to be a complete course or tutorial on network theory, for that the reader can refer to any of the references listed at the end, but rather it is an introduction oriented to go through, in a single document, some of the details that are considered more important and that are usually leTh out of the initial explanations on the subject. [ABSTRACT FROM AUTHOR]

The current period is, at the same time, highly uncertainty and intensive in data production. In the analysis of scenarios produced by the COVID-19 pandemic, we make forecast based on mathematical models where exact assumptions are never true. This leads to a reconsideration of the usual form of data analysis, both in journalism and academic research, bolding on the need for exhaustive testing of the available information, since researchers are often not clear enough in their parameters or assumptions. These omissions usually become in different levels of importance in the media, because journalists tend to assume the same attitudes towards complex data just in the way they do with the news in "normal periods". However, it is necessary to obtain an adequate understanding of the data on positive COVID-19 cases, defunctions or politics aimed to containing the virus, designing some basic rules that both specialists and journalists may take into account when they have to write papers or publish news at a time as critical as nowadays. [ABSTRACT FROM AUTHOR]

This research explored the relationship between a set of variables, such as reading comprehension and logical-mathematical intelligence, along with two sets of cognitive and learning variables, in respect to overall school performance and school performance in the subject of Spanish Language in a population of socially vulnerable secondary school students (N=688). The main objective of this study was to examine the differences and quantify the effect of the addition of the above-mentioned variables to an explanatory model for academic performance. For this purpose, comparative analysis, bivariate correlation and stepwise multiple regression models were used. The results showed that 34.9% of the variance of students' grade point average in the subject of Spanish Language could be explained by the variables that were added to the model. The positive effect of reading comprehension, achievement attributed to effort, and the self-regulation strategy of revision stood out in this model. At the same time, a negative effect was found for older age and attributing achievement to external causes. In addition, the explanatory model introduced in this article showed greater predictive power for the female group; notably the variable critical comprehension also had a positive effect for the female group. Finally, the main educational implications for these findings are analyzed and discussed in this paper. [ABSTRACT FROM AUTHOR]

This paper describes a study of mathematical argumentation in primary school. The principal aim is to explore the nature of complex argumentation at a structural level. The context of the study was a teaching experiment involving nine tasks that promoted argumentation among fifth graders. We use the framework and method of reconstructing complex argumentation in the classroom proposed by Knipping (2008). The findings show that complex argumentation at a structural level in the context of refuting conclusions is characterized by a source-like structure with the addition of a new refutation argument element. [ABSTRACT FROM AUTHOR]

This paper presents the results of a research study aimed to explore the main beliefs and conceptions that have teachers who teach mathematics at the secondary level in Honduras (students 13 to 18 years), in relation to the teaching /learning and assessment of mathematics. The results show, among other elements, that for Honduran teachers the learning of mathematics is achieved by the active participation of the students. This belief is highlighted by teachers with a bachelor in Mathematics; and that the evaluation is a process that improves teaching and learning, providing useful results but, they must be taken with special scrutiny due to mistakes and inaccuracies that always exist. As conclusions highlight the need to improve initial training and continuous training of teachers so that use resources that promotes active student participation and improve the evaluation processes. [ABSTRACT FROM AUTHOR]

In the course of General Physics it is possible to find the problem related to the study of the motion of bodies in a liquid when their densities are greater than that of the liquid. A problem not found in the bibliography consulted is: What depth will be obtained for an sphere when it falls freely from a height H above the free surface, if its density is less than that of the liquid? To carry out the study of this problem, a theoretical model was applied and an analytical solution was found to this depth. In addition, an experiment was designed based in the video analysis technique, using Tracker for Windows to know the real depth obtained. The main goal of this paper is to estimate the energy interchanged in the impact of the sphere on the surface linking both results. [ABSTRACT FROM AUTHOR]

This paper aims to show the situation of the mathematical lexicon in the nineteenth century. Undoubtedly, one of the possible approach for the diachronic analysis of the language is to use the historical dictionaries. Another path is access the sources which served as a vehicle for the scientific expression, for example, the lexicological and lexicographic works of Felipe Picatoste. With both, this mathematician noticed that mathematical terms were being subjected to an abandonment. Ultimately, the study is progressing in the historical study of Spanish language from its scientific perspective. [ABSTRACT FROM AUTHOR]

The deep movement of transformation and renewal of the social, economic and cultural orders befallen in the late Middle Ages, as well as the economic dynamism of the fifteenth and sixteenth centuries and the eagerness of wealth from of the bourgeois class contributes, along with a rapid urban expansion and an increase of continental commercial relationships, the urgent need to learn arithmetic in order to carry out successfully the new accounting. Consequently, in order to satisfy those social needs and for the sake of arrive to the greater number of readers, during the Renaissance were published, first in Spanish, many works devoted to the calculations. The publication of these arithmetic-algebraic treatises --whose purpose was essentially practical-- in the five-hundred century brought with it, not only the democratization of the calculation, but also, from a linguistic viewpoint, dignified the use of the vernacular languages as transmitters of knowledge expressed traditionally in Latin to a minority elite and favored the construction of a type of speech whose rhetoric we analyze in this paper. In short, our aim is bring to light, through extracted fragments of the most significant sixteenth century treatises that containing arithmetic and algebra, the stylistic and informative characteristics of this specialised vocabulary. Motivated by humanist pedagogical theory and to instruct (docere), highlighted in the corpus studied the use of many examples, citations and allusions to authorities, instructions and warnings, among other rhetorical resources which we consider key to the establishment and dissemination of these disciplines in the Iberian Peninsula just like the configuration of the mathematical technolect in Spanish. [ABSTRACT FROM AUTHOR]

Using the classification methods for mathematical problems in textbooks (Fan & Zhu, 2000) and strategies used to solve problems (Fan & Zhu, 2007), this paper reports the results of an analysis and classification of the type of mathematical problems and problem-solving strategies in a sample made up of the five most widely-used mathematics textbooks for the first year of junior high school in the 2013- 2014 school year in Mexico. It is concluded that the textbooks focus on providing a comprehensive range of problems that, for the most part, do not allow multiple problem-solving strategies, whereas others can be solved using an algorithm or direct procedure. [ABSTRACT FROM AUTHOR]

This paper will analyze the importance of playfulness as an instrument for learning mathematics, taking into account that the body allows to develop not only motor skills but also intellectual faculties involving high levels of abstraction, such as mathematical operations like addition, subtraction, multiplication and division. The methodology used was action research, through interviews to students, parents and teachers, as well as the systematization of experiences in the classroom by means of a field diary. It was found that traditional -tedious- teaching does not allow students to realize the importance of learning mathematics. It is concluded that it is necessary for the teachers to implement strategies that link playfulness and the body, in order to improve teaching-learning processes, which allows that mathematics do not be considered as something far from reality, but that be granted the status of a knowledge that improves the processes of understanding and reflection, facilitating the solution of practical problems. [ABSTRACT FROM AUTHOR]

During the 20th century, one of the most debated issues regarding Aquinas's theory of knowledge was the process of abstraction. Attention was mainly focused on the role of abstraction in the definition of objects of speculative sciences. Leaving aside the particular features (and disparities) of this debate, this paper aims to focus on the analysis of a very peculiar text in which abstraction -still considered as the cause of the distinction of mathematical objects-does not seem to designate some sort of intellectual operation. On the contrary, abstraction there appears as a property of the very mathematical essences or forms. The consequences of this could lead to the revision of some established ideas in Thomistic Epistemology. [ABSTRACT FROM AUTHOR]

This paper offers the results of an analysis of the level of mathematical anxiety, understood to mean a feeling of discomfort experienced when someone is required to take mathematics classes, as displayed in students of secondary education in Costa Rica. The study was performed with a sample of 3,725 students in public secondary education in Costa Rica in 2013. The results show statistically significant differences between the sexes in the level of mathematical anxiety, with female students experiencing moderately higher anxiety levels. Differences in anxiety levels are also determined by the student's educational level, with significant differences found between third-cycle students (7th, 8th and 9th grades) and diversified education students (10th and 11th grades); the latter displayed moderately higher anxiety levels. Nonetheless, the study concludes that despite the differences observed, only 22.4% of students show high or very high levels of mathematical anxiety. [ABSTRACT FROM AUTHOR]

This paper presents the results of a research carried out with students of 4th year of Primary Education in which we analyze the effects of the use of a methodology based on the invention and reconstruction of problematic situations in Mathematics class, on the development of metacognition. Results indicate that the implementation of the program improves the following areas in the students: Metacognitive Declarative Knowledge, Procedural Metacognitive Knowledge, Conditional Metacognitive Knowledge and Metacognitive Ability of Prediction. The invention of problematic situations allows students to discover the error and to recognize it in order to avoid it in the construction of new knowledge. These situations promote the awareness of the mental processes involved in the development of the task and in the decision making for the implementation of solving strategies. [ABSTRACT FROM AUTHOR]

The lack of updating and training of teachers in the use of information technology and communications (ICT) as a teaching and learning of mathematics, have limited its methodological work, causing poor performance in the integral learning students and ability to solve practical problems they face in society. That is why this paper aims to consider the more specific contradictions that occur in the teaching and learning of mathematics based on the use of ICT. In this context, it is concluded that recognizes the mathematical task computerized (TMI) as a means to contribute to the improvement of student learning, taking into account the contradiction occurs between the comprehensive nature of the student's education to society and the diverse nature of the ownership of the contents taught in the course. [ABSTRACT FROM AUTHOR]

This paper presents the results of a research carried out with students of 4th year of Primary Education in which we analyze the effects of the use of a methodology based on the invention and reconstruction of problematic situations in Mathematics class, on the development of metacognition. Results indicate that the implementation of the program improves the following areas in the students: Metacognitive Declarative Knowledge, Procedural Metacognitive Knowledge, Conditional Metacognitive Knowledge and Metacognitive Ability of Prediction. The invention of problematic situations allows students to discover the error and to recognize it in order to avoid it in the construction of new knowledge. These situations promote the awareness of the mental processes involved in the development of the task and in the decision making for the implementation of solving strategies. [ABSTRACT FROM AUTHOR]

The article titled "II Workshop on the Teaching of Basic Sciences" reports on a workshop held at the Technological University of Havana "José Antonio Echeverría" in Cuba. The objective of the workshop was to promote exchange and scientific debate on the training in basic sciences for engineers and architects, in the context of the challenges of the 2030 Agenda. 166 delegates participated, including representatives from Peru, Ecuador, Mexico, Brazil, Spain, and Italy. During the event, conferences were held and papers related to the teaching of physics, mathematics, social sciences, engineering graphics, and languages were presented. [Extracted from the article]