735 resultados para Matemática (Ensino médio) - Problemas e exercícios


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Cerca de um terço do total de doenças em adultos estão associadas a condições ou comportamentos que começaram na juventude. No Brasil, a porcentagem de Inatividade Física (IF) nos adolescentes varia entre 29% a 94%, que é um dado alarmante, pois esses adolescentes provavelmente serão adultos inativos fisicamente e com um risco maior de adquirirem uma doença de agravo não transmissível. Desse modo, o objetivo do estudo foi verificar a prevalência e os fatores associados à IF em escolares do Ensino Médio do município de Rio Claro- SP. Estudo do tipo transversal, de base populacional, realizado no primeiro semestre letivo de 2009 contou com a participação de 467 alunos (213 homens e 254 mulheres) das escolas particulares e estaduais do Ensino Médio do município de Rio Claro-SP. Para avaliar o de nível de Atividade Física (AF) dos adolescentes foi utilizado o Physical Activity Questionnarie-Children (PAQ-C). Foi aferido a circunferência de abdômen e calculado o Índice de Massa Corpórea (IMC). Os pais responderam um questionário para avaliar o nível de AF através do International Physical Activity Questionnarie (IPAQ) e o nível socioeconômico. Para verificar a associação entre as variáveis (sexo, nível socioeconômico, IMC e circunferência de abdômen) com o nível de AF dos adolescentes foi realizado a Regressão Logística e para verificar a associação entre o nível de AF dos adolescentes e dos pais foi realizado o Teste Qui-Quadrado. A prevalência de IF dos adolescentes foi de aproximadamente 83% e, dentre as variáveis analisadas, apenas sexo mostrou-se significante (p=0,00), sendo o sexo feminino com maior chance de IF.

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The performance of investigative activities with lessons in teaching Science and Chemistry has promoted meaningful learning of scientific knowledge. This study aimed to develop the links between higher education for research and skills argumentative, aimed at building the scientific concept on combustion of the candle in a closed container, for students from two classes of 3rd year of high school, two city schools Bauru, São Paulo. We decided to do a short course investigative, to respond argumentative skills which are developed during the minicourse using investigative activities, knowledge from the history and philosophy of science. The results were gathered from analysis of video recordings of episodes of the short course in both the groups, to produce a higher rate of use of argumentative skill, which were classified into categories according to the prior knowledge of the subject, 'factual knowledge' , 'understanding of concepts' and 'reasoning and analysis.' From the information obtained, it was found that both the teachers and the students were consistent in their actions, and that the activity of reasoning is key to learning. Thus, one can realize that knowledge is not acquired all at the same time, each individual depends on the mediation of the teacher in order to reach different design more appropriate teaching and investigative linked with the argument can be the key tool to acquire this knowledge

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The difficulties related to physics teaching are related to methodology, that hinder learning, because some physical concepts beyond the common sense of most students. Just as poor training of some physics instructors in teaching is pedagogical difficulties. And also factors of infrastructure, heterogeneity in students' previous training etc.. It is proposed aim of this work to use reflection of teaching practice as a methodology. Practiced in a private school, mostly state and, in high school in Rio Claro. The method consists of preparing a daily pedagogical practice in parallel to the development of teaching, for analysis and identification of factors that result in improving the teaching of physics and physics teacher qualification

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This study shows new alternatives to the teaching of chemistry in high school and wants to be an aid to the teacher at the time of the planning of lessons and a way to help students improve their performance in this discipline. The central issue is the exploration of differentiated teaching strategies for a just end: improvement of education in chemistry. To reach the main point is to undertake a survey of the most important issues for students and teachers, and from there many teaching strategies are suggested to help in understanding the contents studied. The idea is to propose strategies that may be of interest to students of chemistry, stimulating the curiosity of wanting to know more about a certain content that is being studied in the classroom. This study shows that chemistry is not boring, is not as difficult as it seems, and everyone can indeed take pleasure in studying a world as real and so fascinating, if you understand the facts

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Nos dias de hoje, com o grande interesse da população sobre esportes e lazer, a Educação Física vem se propagando e se desenvolvendo de diversas formas, entre elas a Escolar e a Acadêmica. Em função disso, surgiu o interesse de descobrir como são as aulas de Educação Física no Ensino Médio. Para tanto, procuramos averiguar, a partir da visão dos professores, quais são os principais pontos negativos da Proposta Curricular do Estado de São Paulo de Educação Física rede Pública Estadual de Ensino. Tendo por base os professores da rede Estadual de Ensino demos início a esta investigação. Para tanto, foi aplicado um questionário, contendo 6 questões, em 9 professores da “rede”. Após as análises, os resultados mostraram que grande partes dos entrevistados apóiam a iniciativa do Governo Estadual em criar a Propostas Curricular. Tais professores dizem também que o ensino melhorou, porém é necessário que melhore e que tanto o profissional de Educação Física como a disciplina escolar devem ser mais valorizadas.

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This work consisted in analysing five materials which mean respect to subjects related to Particle Physics, aiming to explore their potentialities for the use in the High School levels, particularly by physics teachers. On this perspective, we sought to describe the contents of each material and point out their potentialities as material of didactic support. They are: 1. The purpose of Secretaria da Educação do Estado de São Paulo, presented in the Teacher's Guide of the Program São Paulo faz escola; 2. The Game Sprace Game, elaborated by the European Organization for Nuclear Research (CERN); 3. The book O discreto charme das partículas elementares, written by the professor Maria Cristina Abdalla; 4. The video O discreto charme das partículas elementares, based on the book of Professor Maria Cristina Abdalla which was produced by TV Cultura in association with the Ministério da Educação e Cultura” (MEC). The book Partículas elementares no ensino médio: uma abordagem a partir do LHC written by Wagner Franklin Balthazar and Alexandre Lopes de Oliveira, from the collection CBPF - Tópicos de Física. The work was constructed on a qualitative perspective, that is, it did not attempt to quantify the help that each material could offer to Physics teaching. One sought to describe and analyse, from different theoretical frames, their potentialities for the use in the High School level. The results indicate that all the materials analysed can contribute to the Physics teaching, and beyond, as they own format and approches distinct from the subject, they can be used as a whole or in parts, together or separately, depending on the objectives to be reached and on the profile of the target public

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This article has as objective to discuss some topics concerning the supposed crisis of the society of the work and its consequences for the debate in social sciences and also for the work category contextualization in the secondary school curriculum. As the work has represented an important explanation category for the classic social thought, the contemporary paradigm of deep metamorphoses in the world of the work and the advent of the new question (CASTELS, 1995; ROSANVALLON, 1995) backward the necessity to rethink the theoretical shades that base the interpretation of the social life on the current context, when the center position of the work is being questioned. Having taken some theoretical references from the sociology of the work, we search to delineate on a brief way the quarrel about the dimensions of the social and political phenomena these days and the importance of this debate on the contextualization of the secondary school curriculum contents.

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Studies have shown that adolescents begin to make use of alcoholic beverages earlier and excessively, a behavior which has several negative consequences. Thus, the present study aims at investigating whether the expectations they have for the effects of alcohol consumption are high or low and if there is a relationship between expectation and consumption pattern. AUDIT and IECPA were applied as data collection instruments. The first indentifies the pattern of alcohol use and the second investigates the expectations the subjects have in relation to the use of alcohol. The results of this study, differently than others, do not evidence the positive relationship between binge-drinking and high expectations about the use of alcohol.

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We performed in this study an analysis of Curriculum Astronomy contents the public schools of São Paulo from the available educational materials to teachers and students by the state board of education. We analyzed the conditions that teachers carry out the activities suggested to the teaching-learning situations, considering factors such as time available for classes, available material and the general technical condition to perform the activities suggested by the material. Thereafter, we conducted a search with teachers from public of São Paulo, than three cities in the Vale do Paraíba, in order to trace a general framework of the perception of these teachers about the introduction of Astronomy in Physical during the implementation of the new curriculum

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Pós-graduação em Educação Escolar - FCLAR

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The education research guidelines have shown the important contribution of the investigations that focus on analysis of the discursive dimension of teaching and learning of Science in actual classroom. An interesting proposal to analyze the effectiveness of an educational activity is to assess the potential of investigative activities in the development of argumentation in science classes. Several studies have taken into account the use of argument in the classroom as a way to provide students with new ways to know the science. Argument refers to the process of associating components that play a central role in the construction of explanations, models and theories. In order to investigate the potential of these activities took place the application of investigative activities with third-year high school students, recorded in audio and video, focusing on the development of the argument. The search, conducted ranks as a qualitative research with characteristics of a case study. The arguments collected during the activities contained the students' conceptions about the concepts discussed and all were recorded in audio and video. With the encouragement of the argument by the investigative activity we evaluate the learning experienced by the speech of students. It may be noted that students have appropriated the concept of oxidation involving electron transfer, thus the activity reached the goal, so that was planned, making it effective for the introduction of electrochemical concepts

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Teaching cases are records, through written narratives, of an academic episode or incident, they appear in educational scenery as a rich strategy not only for the teacher's conformation but also for their investigation. The bibliography shows that young students are still not very much investigated and it contributes to the establishment of negative images of this social subject. In this sense, the objective of this work is to analyze the stories and episodes, called teaching cases, in narrative style, written by students from High School about their physical education classes. The participants of this study are High School students from two public schools from two cities in the countryside of São Paulo state. The researcher stayed in the schools for nine months and in this meantime she made contact with the students, asking, for the ones who showed interest, the construction of teaching cases. For this interested students, the researcher explained researcher explained what teaching cases are, as well as, she presented a template to guide them in the production. At the end of this process, twenty teaching cases were delivered to the researcher. They were analyzed under the qualitative approach, valuing the expressive wealth in the narratives, complemented by the interviews with the authors. Inset the mosaic of narratives and interviews, showing a variety of experiences and possibilities of distance and approximation of the students to the physical education classes, we can indicate that from the 20 cases, only one was set as a total distance from the physical education classes (this is the student's situation since she was in the second grade from elementary school). Mentioning the positive experiences and the approximation to the physical education classes, the association of teaching cases and interviews showed that seven students lived the context and until today present an affective proximity to the classes. These evidences can help...

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)