Abordando o sono no ensino médio: proposta de unidade didática contextualizada com o tema saúde

Biological rhythms are part of the life from the simplest to the most complex living beings. In humans, one of the most important biological rhythms is the sleep-wake cycle (SWC), which represents an indispensable behavior for health, since sleep deprivation can lead to deficits in attention and memory, mood and daytime sleepiness which may affect school performance. Nevertheless, the SWC is a content rarely discussed in schools. Thus, the aim of this research was to address contents of the sleep-wake cycle, related to the content of Health to encourage healthy sleep habits. This study was conducted in a public school with 33 students of the 3rd year of high school and is divided into four stages: 1st) Study and analysis of the content of the textbook adopted by the school to subsidize the activities covered in the teaching unit (TU) and approximation with the biology teacher from the class to evaluated the feasibility of schedules for the development of TU; 2nd) Survey of students' prior knowledge, through a questionnaire, to guide the development of the TU; 3rd) Development and implementation of a TU based on meaningful learning and characterization of the students sleep habits, 4th) Evaluation of the TU as a viable proposal to teach biological rhythms concepts. Previous knowledge of students about the SWC are scarce and this content is not covered in the books adopted by the school. Alternative conceptions were observed, particularly with regard to individual differences in sleep, which may contribute to the occurrence of inadequate sleep habits, as reported by the adolescents in this study. The activities developed during UD were well received by the students who showed participative, motivated and evaluated positively the procedures used by the researcher. After the TU, students' knowledge about the concept of biological rhythms has been increased and they started to identify that the SWC changes throughout life and occur due biological and socio-cultural factors. Thus, the UD elaborated in this study represents a viable proposal to teach the concepts of biological rhythms contextualized to the content of Health, in high school

Inércia e Natureza da Ciência no Ensino de Física: uma sequência didática centrada no desenvolvimento histórico do conceito de inércia

During the last decades the area of science education has discussed issues related to the inclusion of the History and Philosophy of Science (HFS) in the practice of science teaching. Among the arguments put forward in favour of this approach, it is pointed out the possible enhancement of scientific content learning and the understanding of the nature of Science (NoS). In spite of such considerations, we still have a very small number of research papers reporting results of practical interventions that utilize the historical approach, moreover, there is a lack of teaching materials in this perspective. Our work has sought to contribute to this area with regard to two aspects: on the one hand, with the production of didactic material, by drawing up texts on the history of inertia for graduate students. On the other hand, we investigate whether the arguments mentioned above in relation to the didactic use of HFS sustain themselves, in a particular context. We developed and applied a didactic sequence, using the texts that we built, to teach the concept of inertia and discuss selected contents of NoS. The didactic sequence was applied in two graduate classes, one from a course of Geophysics (BSc.) and another from the Physics (teaching formation), both from the Federal University of Rio Grande do Norte (UFRN). An initial survey exposed that students, even having approached the concept of inertia in basic education, presented conceptions of common sense regarding the relationship between force and motion. The questionnaire also allowed us to identify the existence of elements of concepts considered inadequate as regards to NoS. At the end of our research, our data indicated a greater number of positive hits on the issues concerning the concept of inertia. Regarding the aspects of NoS, we were able to identify, in a few cases, a move towards a more appropriate understanding, however, certain distortions persisted, highlighting the limitations of the approach used

Física do meio ambiente como disciplina nas licenciaturas em física: proposta de uma unidade didática para ensinar efeito estufa e aquecimento global

In this dissertation we propose a Teaching Unit of Physics to teach content through environmental discussions of the greenhouse effect and global warming. This teaching unit is based on a problem-methodological intervention from the application of the method of the Arch of Charles Maguerez. The methodological foundations of the thesis are embedded in action research and this is structured in five chapters: the first chapter deals with the Physical Environment (FMA) as a subject in Degree Courses in Physics in Brazil, bringing the concern of how this discipline has been taught. We started the first chapter explaining the reasons behind the inclusion of the discipline of Physical Environment in a Physics Degree Courses. Then we did a search on the websites of Institutions of Higher Education, to know of the existence or not of this discipline on curricular. We then analyzed the menus to see what bibliographies are being adopted and what content of Physics are being worked, and how it has been done. The courses surveyed were those of Federal and Federal Institutes Universities. Thus ended the first chapter. Given the inseparability between studies in Physics Teaching and studies on competencies, skills and significant learning, wrote the second chapter. In this chapter we discuss the challenge of converting information into knowledge. Initially on initial teacher training, because even if this is not our focus, the study is a discipline on the upper reaches, therefore, offered to future teachers. Then we talked about the culture of knowledge, where we emphasize the use of a teaching approach that promotes meanings taught by content and make sense to the student. We finished the third chapter, making some considerations on skills and abilities, in order to identify what skills and competencies were developed and worked during and after the implementation of Curriculum Unit. The third chapter is the result of a literature review and study of the radioactive EarthSun interaction. The subjects researched approach from the generation of energy in the sun to topics stain solar coronal mass ejections, solar wind, black body radiation, Wien displacement law, Stefan-Boltzmann Law, greenhouse effect and global warming. This chapter deals with material support for the teacher of the aforementioned discipline. The fourth chapter talks about the arc method of Charles Maguerez; Here we explain the structure of each of the five steps of the Arc and how to use them in teaching. We also show another version of this method adapted by Bordenave. In the fifth and final chapter brought a description of how the method of Arc was used in physics classes of Environment, with students majoring in Physics IFRN Campus Santa Cruz. Here, in this chapter, a transcript of classes to show how was the application of a problem-based methodology in the teaching of content proposed for Physics Teaching Unit from the environmental discussion about the greenhouse effect and global warming phenomena

Consumo c(l)iente: abordagem do gênero anúncio publicitário em livros didáticos de língua portuguesa do ensino médio

Portuguese language textbooks, according to what has been preconized on the official document to education, have been configured on discursive genres imported from diverse spheres of human activity. Adverts, genre of ample social circulation, spread from the Advertising sphere to the schools and started being approached by these collectaneas as an object and a tool for teaching. Therefore, this research deals with the approach of ads in Portugese textbooks. These discursive practices matter for the impact or appeal they exert over the (new) consumers, among which High School students; for their representation in the capitalist system, which guides us on our relationships and social practices; and for the mix of languages that end up at their composition, once they encapsulate the spirit of our time, par excellence, the one from the verbal-visual genres. To understand the treatment given to these advertising pieces, from questions/commentaries related to them, two collections were selected by the Programa Nacional do Livro Didático – Textbook National Program (PNLD 2012) among the ones more used by public High Schools in Natal/RN. From Applied Linguistics, from mestizo, nomadic and inter/transdisciplinary identity (MOITA LOPES, 2009), this study falls within the discursive chain of the interpretive tradition of historical-cultural approach (FREITAS, 2010) and names the Bakhtin Circle and its language‟s dialogical conception as inescapable partners. The data of the colletaneas show that the genre approach can happen as concrete utterance, as linguistic artifact and as hybrid, at work with questions and without questions, with the predominance of its occurrence in the portion of the volume devoted to the study of grammar. In the literature chapters and production/interpretation of compositions, it insert is incipient or it doesn‟t happen in the volume. Such a provision has implications for multiliteracies (ROJO, 2012) of the citizen student, once the lack or the abundance of critical reading proposals for this genre, that demand from the student the exercise of knowledge that is necessary to the construction of linguistic and social meanings, can be responsible for guide to a more conscious consumerism (material and cultural) by the chief customers of the work under review. The approaches of the genres seems to indicate a gradual transition that such material have undergone, which means, from the focus on clauses to the focus on utterances, or even the approach as linguistic artifact to hybrid and the concrete utterance, in search of overcoming the traditional tendency of taking advantage of formal aspects of the language, to the detriment of enunciative ones, and for coming into harmony with the guidelines and parameters of teaching in contemporary times, bringing the school duties close to the rights in life.

O processo de ensino e aprendizagem de língua espanhola para alunos cegos: narrativas do ensinar e aprender

En los días actuales, la Educación Inclusiva hay sido eje de amplias discusiones, pues en ella, la educación es direccionada a todas las personas, con discapacidades o no. Por intermedio de ella, todos tienen derechos a una enseñanza de calidad y pueden compartir las mismas oportunidades de aprendizaje. Esta investigación tiene por objetivo hacer un análisis del proceso de enseñanza-aprendizaje de la lengua española en un contexto, en lo cual alumnos con y sin ceguera compartían el mismo espacio educacional. Es por lo tanto un investigación de naturaleza exploratória e cualitaviva, en la cual es utilizada como un herramienta para la recogida de los datos la entrevista semiestructurado con preguntas abiertas, realizada con los profesores de lengua española y sus alumnos ciegos. Como aporte metodológico utilizamos el Análisis Proposicional del Discurso – APD (PIRES, 2008) para que los datos pudieran ser analizados. Los resultados señalaron que, aunque los diferentes condicionantes, los alumnos ciegos, cuanto al proceso de enseñanza aprendizaje de la lengua española, presentan dificultades de orden estructural, personal y pedagógica semejantes. Evidenciado a partir de las declaraciones. También se constató una ausencia de preparación por parte de los profesores referentes a la utilización de recursos didácticos y estrategias de enseñanza que pudieran contemplar a las especificidades de aprendizaje de estos alumnos.

Correspondências científicas como uma relação didática entre história e ensino de matemática: o exemplo das cartas de Euler a uma princesa da Alemanha

Lettres àune Princesse d'Allemagne sur divers sujets de physique et de philosophie (Letters to a Princess of Germany on various topics of physics and philosophy) is the work taken as an object of study of this thesis. It is a literary success written in the eighteenth century by the Swiss mathematician and physicist Leonhard Paul Euler (1707-1783) in order to meet a request from the Prussian king, Frederick II, the Great (1712-1786) to accept to guide the intellectual education of his niece, the young princess Anhalt-Dessau (1745-1808). The method of teaching and learning through letters elected to the education of the German monarch resulted in a collection of 234 matches in which Euler theory is about music, Philosophy, Mechanics, Optics, Astronomy, Theology and Ethics among others. The research seeks to point out mathematical content contained in this reference work based on the exploitation and adaptation of original historical works as an articulator of development activities for teaching mathematics in basic education and in accordance with the National Curriculum Parameters of Mathematics (NCP) work. The general objective point out the limits and didactic potential of Lettres à une Princesse d'Allemagne sur divers sujets de physique et de philosophie as a source of support for teachers of basic education in developing activities for teaching mathematics. The discussions raised point to concrete possibilities of entanglement between the extracted mathematical content of the bulge of the work with current teaching methodologies from resizing the use of letters according to Freire's pedagogical perspective of the correspondence, and especially the use of new communication channels in the century XXI, both aimed at dialogue and approximation between those who write and those who read.

A injunção em livros didáticos de língua portuguesa do 4º e 5º anos do ensino fundamental

This investigation aims at identifying, describing, analyzing and interpreting how textbooks on Portuguese Language approach, beginning with the linguistic material, the effects of sense in texts that predominately employ injunctives. The corpus of this study is comprised of six collections of textbooks on Portuguese Language, which are part of the National Program Guide for Textbooks (PNLD) from 2010, adopted by the public schools in the city of Natal and the object of study for the Read/Tell Project of the Educational Observatory of the Federal University of Rio Grande do Norte (UFRN). Textbooks from the 4th and 5th grades, Elementary School, were analyzed – 12 copies total. For the analysis, we selected 16 writing proposals of injunctive texts. Our study is based on theoretical discussions by Adam (2001a, 2001b) with regard to the genre of: inciting to action. In addition, we consider the work of Koch and Fávero (1987), Koch and Elias (2009), Marcuschi (2003, 2008) Pery-Woodly (2001), Rodrigues (2013), Travaglia (1992, 2007) and Rosa (2007). With respect to discussions on textbooks, we refer to Choppin (2004, 2009), Batista (2003, 2009), Rojo e Batista (2005), and with regard to Portuguese Language textbooks specifically, we consider Soares (1998, 2001, 2004) and Bunzen and Rojo (2005). The proposals for writing in injunctive texts, in the collections analyzed, are tips/recommendations, instructions on making toys and/or games, travel itineraries and cooking recipes, such that 69% of them appear in the 4 th grade textbooks and only 31% appear in the 5th grade textbooks. With respect to the linguistic elements responsible for the construction of directive speech acts and the effects on sense produced by them, the data shows that 50% of the writing proposals do not exploit linguistic categories that implicate the effects on sense using injunctives, or rather, there is no work done dealing with linguistic analysis, while 33% mention the imperative mode and 17% investigate infinitive verbs. In this dissertation, the textual plans of incitation to act genres were studied and in them the linguistic materiality that vehicles injunction. This study might contribute to the improvement of Portuguese language teaching in what concerns the articulation of grammatical studies to textual sequences/types, mainly in the case of Portuguese language textbooks for the 4th and 5th grades of Elementary School.

A (não) assunção da responsabilidade enunciativa em livros didáticos de língua portuguesa dos 4º e 5º anos

Portuguese textbook has been the focus of many investigations, nevertheless, the theme still has much to be discussed, reflected and broadened. This conviction mobilized us to perform this research, seeking to answer three questions: (1) how does the author of the textbook induce the student to give his opinion in comprehension questions of text in Portuguese textbook of 4th and 5thgrade? Which enunciative links are used by the author of the textbook in comprehension questions of text concerning to the assumption of enunciative responsability? And (3) Which enunciative links are used by the author of the textbook in comprehension questions of text concerning to the non assumption of enunciative responsability? In this direction, we define as objective to id entify, describe, analyze and interpret how the (non) assumption of enunciative responsibility materializes itself in Portuguese textbooks. The theme is echoed in the guidelines of the Parâmetros Curriculares Nacionais PCN (1998; 2001), who assume that all education committed to citizenship need to create conditions in order the student can develop his discursive competence" (BRAZIL, 1998, p. 23). This assertion of PCN (1998; 2001) is closely related to our research object, and therefore, it has corroborated to the accomplishment of this study. So, we analyze the comprehension questions of the texts that are elaborated by the authors of Portuguese textbooks of the 4th and 5th grade, used at public schools in the city of Natal-RN in 2010. As a theoretical basis, we have considered the postulates of Textual Analysis of Discourses ATD and Enunciative Linguistics. Our research was mainly based on the studies of Adam (2011), Nølke (1994; 2001; 2006; 2009; 2013), Nølke, Fløttum e Norén (2004) Rabatel (2004; 2005; 2008; 2009), Guentchéva (1994; 1996). Our data analysis revealed that the authors of Portuguese textbooks explore the reading comprehension, inducing students to answer questions that may be categorized like: (1) induction to the assumption of enunciative responsibility, (2) induction for non assumption the enunciative responsibility, (3) orientation for the study of vocabulary and grammar and (4) orientation of extra themes. The results from the comparison of the books of 4th and 5th grade of the two analyzed collections, we observed through the links of (non) responsability Nølke (1994; 2001; 2006; 2009; 2013), Nølke, Fløttum e Norén (2004), which in 79% of the questions, the authors induce the decoding of a content objectively inscribed in the text. In this sense, the notion of understanding a text is compromised, since it is limited to copying contents or transcription exercises, failing to consider the interactive use of language, or rather, failing to expand the student's knowledge in the (re)construction of the text of the meanings. This shows that there is a lack in the deal with the text that includes the textual discursive resources in the reading activities in Portuguese textbooks. We recall, in this direction, the works of Marcuschi (2005), Antunes (2003, 2005), and Bunzen Rojo (2008), among others authors who contributed greatly to orient the choice of Portuguese textbooks. Finally, we believe that the study about the enunciative responsibility phenomenon in Portuguese texto oks offers, above all, instruments in order to the interlocutors identify the elements present in the enunciation and the effects that these elements bring to the (re) construction of the meanings in texts that they read and write in the classroom.

"Quem sou eu?": uma (re)construção do sujeito por meio da narrativa autobiográfica - proposta didática com um olhar nas interações em sala de aula

As we are aware, the classroom is emerging as a continuous build learning experiences and environment, however, for students also it functions as a place also to be due to socializing with friends. However, not always these elements complement each other, so as harmoniously as we are aware that there are many difficulties, both in the act of learning as in interpersonal relations between them. From this, we understand that it is for the school to seek ways to contemplate such issues so that they feel inserted both with regard to this learning as well as being able to interact with themselves and with others, in a participatory manner, to live well socially. Thus, we find ourselves facing a similar situation with a 9th grade class where the students had certain limitations to have a good relationship with one another, causing thus problems in learning. On the other hand, this difficulty as affectively interact with each other, also, was increased by the difficulty that some students had to speak for themselves and to show their feelings and emotions, getting even more difficult this interaction at school. Thus, we found ourselves obliged to act immediately and need to bring about change in this picture. So it came out the idea of the application of an intervening action which started taking shapefrom a pedagogical project that we developed in other classes in previous years, this time adapted to the situation experienced by the group. The project, framed in the qualitative research and characterized from the action research approach took shape, and elected as its main objective to seek possible alternatives to develop the communicative competence of students, which is why we invest in exercise oral communication (speaking and listening) in order to promote the use of language, the interpersonal involvement facilitating thus their participation both in the classroom and in social life. To fulfill this goal, we set out to develop a didactic book whose support materialized through the autobiographical narrative (molded in writing production) and worked along a structured instructional sequence in three distinctstages that dialogued with each other. Therefore, we base our study from the socio-historical conception and dialogue proposed by Bakhtin in line with the sociodiscursivo interactionism of Bronckart and resort to other scholars as Dolz and Schneuwly, Marcuschi among others. The development of all stages of the project not only has had an immediate effect on what we proposed ourselves as also yielded us very gratifying moments reinforcing to us that the classroom environment goes far beyond the fact ministering content. And that work with orality, with views on affective interaction of these students resulted in a project, so to speak, exciting.

A oralidade no ensino de Língua Portuguesa em livros didáticos para educação de jovens e adultos (EJA): reflexões e proposições

This work appears as a reflection on the oral modality of the language in the teaching of Portuguese Language from textbooks proposed for the elementary school. It has as main aim to analyze the textbooks for the Youth and Adult Education - EJA (6th and 7th grade), the collection "It is time to learn", specifically in regard to educational activities focusing on oral proposals in their constituent units. It is a process of reflection with a view to submitting suggestions arising from the discussions held, given the fact that the writing mode has been identified by some scholars, between these Marcuschi (2005), as the most privileged in the classroom and in most manuals that guide the teaching of Portuguese Language. In this work, we start from a broader vision from the principles of dialogic pedagogy by Paulo Freire perspectives towards pedagogical practices that favor the development of linguistic and discursive student skills. In this sense, we emphasize the formation of a critical subject, who can argue and defend points of view, using oral or written language, in various social situations. In this view, this paper set up aims to identify, describe and interpret the activities proposed to the oral modality of Portuguese Language, from interactional theoretical bases, based on authors as Marcuschi (2005, 2010), Fávero, Andrade and Aquino (1999) Schneuwly and Dolz (2004), Antunes (2009), among others. In addition, the objective was to suggest other educational activities, as a way of expanding the existing ones, in order that addressed more efficiently, to aspects of orality been proposed and aspects of formal oral genres. Methodologically, it is a qualitative research, in which, from the teaching materials used in the classroom, there was a reflection on the orality and the oral teaching of the Portuguese language and has been proposed an expansion of activities one oral mode. In this reflection, analysis of the results revealed that the books investigated, used in Portuguese classes in EJA, include in their proposals orality as an object and teaching axis. However, we appoint the need to expand the teaching proposals with the existing activities in order to give greater emphasis to important aspects of orality already prioritized, and also to address to the formal public genres. In seeking to make suggestions and educational proposals that integrate with existing, we postulated the most effective development for oral skills for the EJA student, in Freire's perspective, as also we thought in a way to provide subsidies which could guide teachers of the Portuguese Language area at the fundamental level of education.

Proposta de jogo químico como estratégia didática no ensino a distância abordando o conteúdo de estereoquímica

The educational games can act as a complementary tool in the teaching and learning as play an important role in the interaction of the student with knowledge, and encourage interrelationship between students and motivate them by the pursuit of knowledge. This research is intended to analyze the evidence of the students of distance education applied to semesters 2011.2 and 2012.2 for the purpose of to catalog the mistakes presented by the students, the contents of stereochemistry that attended the Chemistry of Life discipline. From the presented mistekes, develop an educational game, "walking the stereochemistry", addressing that content. The choice of stereochemistry content was due to the low number of found work in the literature, and for being one of organic chemistry content that generates learning difficulties, as it requires a mental visualization and manipulation of molecular structures, besides require observation and comparison ability by the students. The game was applied of Life Chemistry discipline of Nova Cruz Polo in semester 2013.2, with intention to verify the viability and applicability this tool for the development of motivation ability by the pursuit of knowledge by the students, as well as complement the didactical materials of the DE. Then, It was made available on the course page an opinion questionnaire to the participants of the game, as a way of to investigate the opinion their about the proposed strategy. To diagnose the contributions of the game on student learning, it was taken a comparative analysis of stereochemistry issues contained in didactic tests applied in 2013.2 semester students participating and not participating of the polo of Nova Cruz and was also compared with the tests applied at the poles of Extremoz, Currais Novos, Lajes and Caico. So the game can be considered an important resource to complement the teaching materials of distance education, because awoke the motivation for the search of knowledge and contributes to the learning of stereochemistry content.

A intercompreensão em Línguas Românicas nas aulas de Espanhol: o que querem e o que podem essas línguas?

The official documents that guide the teaching and learning process of a Foreign Language in Brazil, Parâmetros Curriculares Nacionais de Língua Estrangeira, suggest a linguistic and intercultural communication as the main objective of teaching a foreign language inorderto contribute withareflexive formation of the students.Toachieve this goal, a Virtual Interchange was realized connecting distant places like Córdoba, in Argentina, and Natal in Brazil, between High School students through Moodle platform and Facebook. The Interchange is based in the Intercomprehension in Romance Languages(IC) guidelines, inthiscase between Portuguese and Spanish, according to which every student speaks their own language and makes an effort to comprehend the others througha collaborative process thatgo es beyond the limits of mere linguistic objectives and favors the students’ reality acceptance before the diversity. This qualitative study with thno graphic characteristic stries to know whe ther differentiate projects can increase students’ interest to learn the target language. It was also set as an aim of this study to develop the intercultural competence of our students and foster the respect for different cultures. In the case of Argentinian and Brazilian students, wetried to promote reflection about social representation trying to destroy stereotypes between both groups. As methodological resources, we used interviews, questionnaires and intercomprehension activities during the Project, as well as a participant observation of the interactions betweenthe students of both countries.Webe lieve tobe contributing towards the integral formation ofth student asacriticalcitizenthatthinksa bouttheir posture before the world, which is one of the formal education aims according to Parâmetros Curriculares Nacionais. Our theoretical foundation is based on Intercomprehension in Romance Languages (IC) as a plurilingualism didactics, (JAMET AND SPIŢĂ 2010; ARAÚJO AND SÁ et al., 2003; CAPUCHO, 2010; ANDRADE etal.,2003), some the oriesaboutinter culturalisman didentity(Vallespir, 1999;DUARTE&SANCHES,2004; REVUZ,1998;SILVA,2000;CHAUÍ2006; SERRANI-INFANTE 1998), motivation and second language learning (DECI & RYAN, 1985; DÖRNYEI AND OTTÓ, 1998; DÖRNYEI, 2000, 2001; 2011) and Significant Learning Theory (AUSUBEL, 1968). The results show an increase of students’ motivation when in contact with the target language through dynamic activities in an IC context. Moreover, we noticed that a deeper thinking aboutthe Argentinian culture helped to deconstruct previous cultural representation.

Minicontos: uma prática de letramento emergente na escola

Like numerous other mini ficçion genres, the Flash fiction is configured as a concise and brief genre, but it can still preserve some elements of the traditional tale, such as: narrator, space-temporal unit, characters and plot. For some authors, the emergence of this genre is strictly connected to the speed and diversity of forms of communication in the current social context, that require the reader other skills in addition to reading and writing. Considering the importance of these skills in a literate society and recognizing this genre as potentially effective tool for the development of literacy, this research has as objective to describe the development and implications of didactic sequence directed the literacy practices with the Flash fiction genre. Thus, the research becomes effective in an elementary school vespertine class in 9th grade from Escola Estadual Dr. José Gonçalves de Medeiros, located in the city of Acari-RN. As theoretical assumptions, it will be used fundamentals from Literacy Studies as social practice, especially that ones discussed by the writings Kleiman (1995), Hamilton (2000), Soares (2012), Mortatti (2004) and Rojo (2012). To subsidize the literary literacy, it will be used the theoretical contibutions of Borges (2000), Candido (2004), Pinheiro (2001) and Silva e Silveira (2013). In what relates to the study about the storytellers, it was taken by support the postulates of Gotlib (2006), Bosi (1997), Cortázar (1999), Talbot (2002), Poe (s/d), Luzia de Maria (2004), as well as studies by researchers and writers as Spalding (2007; 2008; 2011), George (2007), Freire (2004) and Trevisan (1994), among others who are dedicated to study Flash fiction. In the methodological field, the proposed perspective anchors itself in an action-researching guidelines (MOREIRA; CALEFFE, 2006) and in the approach of a qualitative data (BOGDAN; BIKLEN, 1994), since it talks to interpretation of diagnosed situation, implementation of intervention actions organized in didactic sequence (SCHNEUWLY; DOLZ, 2004; BARROS; RIVERS-registry, 2014), including description and evaluation of results achieved from the implementation of such actions. The discussions generated indicate that the work with Flash ficition, developed by means of didactic sequences, contributes to the reflection on teaching strategies of Portuguese, used to prepare the students to meet the demands of reading and writing of contemporary society.

A leitura e a produção textual no ensino fundamental I: uma proposta de como trabalhar com os gêneros textuais

The little interest in reading and the large presence of deviations in writing observed in the texts of students of the 5th grade of a public school in RN, led us to question the motives of this problem. Thus, the idea to organize and develop teaching sequences with a variety of possibilities of reading and production through the text genres. The practice with the textual genres in elementary school extends the use of reading and writing and improves the quality of learning. In this way, the school, as one of the most active spheres in social practices of the language, we justify this work with the use of text genres as facilitators for teaching and learning the mother tongue. For this purpose, we draw as the main objective to talk about the work with textual genres from the development of didactic sequences, as well as encourage students to take a more reflexive attitude toward language and its uses, as discursive social practices. The development of the study with the text genres was made through the application of didactic sequences in the school context of elementary school classes, from 5th grade. Specifically were chosen, the letter, note, music, poetry, fable and the tale. The study is anchored in the reflections of the following theorists and researchers: Bakhtin (2011), Miller (1994), Marcuschi (2008) and Bronckart (1999) on the text genres; Marcuschi (2005) and Dolz and Schneuwly (2004) that approve a teaching-learning proposal focused on textual genres, giving a meaning to language in the construction of the knowledge and Dolz and Schneuwly (2004) regarding the didactic sequence; other theoretical orientations: PCN (1998), Lerner (2005), among others. The methodology followed the action research guidelines, in a qualitative approach perspective. The instruments of research included questionnaire, observations, readings and productions. The results pointed the students' interest in relation to the activities developed in the didactic sequences and consequently improvement in the students‘ own writings. In this sense, we reiterate the need to contamplate in the teaching activities the diversity of texts and genres and, not only due to its social relevance, therefore the student should be able to use the language in various way and adapt their texts to situations of oral and written interlocution.

Análise da imunoexpressão da podoplanina e da triptase em carcinoma epidermóide de língua e sua relação com parâmetros clinicopatológicos

Oral tongue squamous cell carcinoma (OTSCC) has an aggressive biological behavior, with a high propensity for the development of lymph node metastases. In this context, lymphangiogenesis is considered an important phenomenon for the spread of tumor cells and may be influenced by microenvironmental stimuli. Mast cells have been implicated in tumor progression, although their influence in the formation of lymphatic vessels is not well established. The aim of this study was to analyze, in a case series of OTSCC (n=50), possible correlations between lymphatic vessel density (LVD), mast cell count and clinicopathological features, including tumor-node-metastasis (TNM) stage, histological grade of malignancy (Bryne, 1998), and nodal metastasis. LVD was established as the mean number of lymphatic vessels immunostained by anti-podoplanin (D2-40) antibody, identified in five microscopic fields (200x). For the analysis of mast cells, tryptase-immunoreactive cells were quantified in five fields (400x). Both immunostainings were analyzed in the tumor center and invasion front. Intratumoral lymphatic density (ILD) was higher in cases in advanced clinical stages (III-IV), compared to those in initial stages (I-II), as well as in metastatic cases in respect of non-metastatic (p<0,05). There were no statistically significant differences between low-grade and high-grade malignancy cases with respect to ILD (p>0,05). Peritumoral lymphatic density (PLD) and mast cell counts showed no significant relations with any of the clinicopathological parameters evaluated (p>0,05). Also there were no significant correlations between LVD and mast cell counts, whether in intratumoral (r = -0,004; p=0,977) or peritumoral region (r = -0,154; p=0,285). The results of the present study suggest that intratumoral lymphatic vessels may contribute in part to the progression of OTSCC, although PLD may be insufficient to justify differences in biological behavior. This supports the hypothesis of involvement of other mechanisms in metastatic spread of malignant cells, which could complement the effects of lymphangiogenesis. Although mast cells perform several pro- and antitumoral functions, they do not appear to directly influence aggressiveness of OTSCC. In addition, the quantity of these cells may not be essential for lymphatic vessel formation.