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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

O ensino de progressão geométrica de segunda ordem no ensino médio / The teaching of geometric progression of second order in high school

Lopes, Fernando Henrique [UNESP] 28 August 2017 (has links)
Submitted by FERNANDO HENRIQUE LOPES null (prof.fernandohenrique@hotmail.com) on 2017-09-26T12:07:17Z No. of bitstreams: 1 Dissertação FINAL.pdf: 738423 bytes, checksum: 268542ff74b4d1d629da8bc04263c740 (MD5) / Approved for entry into archive by Monique Sasaki (sayumi_sasaki@hotmail.com) on 2017-09-28T12:36:50Z (GMT) No. of bitstreams: 1 lopes_fh_me_sjrp.pdf: 738423 bytes, checksum: 268542ff74b4d1d629da8bc04263c740 (MD5) / Made available in DSpace on 2017-09-28T12:36:50Z (GMT). No. of bitstreams: 1 lopes_fh_me_sjrp.pdf: 738423 bytes, checksum: 268542ff74b4d1d629da8bc04263c740 (MD5) Previous issue date: 2017-08-28 / O presente trabalho tem como objetivo principal apresentar a definição e propriedades de progressões geométricas de 2º grau, geralmente não trabalhadas no estudo de sequências numéricas, que é iniciado no 1º Ano do Ensino Médio. Para isto, é realizado um estudo de casos gerais para sequências e séries de números reais, para posteriormente, exibir aplicações do conceito no Ensino Médio. Inicialmente é apresentado ao aluno as definições e propriedades de sequências e séries, que requer um estudo mais aprofundado uma vez que é um assunto de maior complexidade para aplicação em turmas de ensino médio. Tais propriedades são utilizadas como ferramentas para o desenvolvimento posterior de progressões aritméticas e geométricas, tanto de 1ª como de 2ª ordem. Uma vez definidas as progressões, atividades sobre o assunto são aplicadas aos alunos para que os mesmos dissertem sobre suas facilidades e dificuldades encontradas na resolução. / The present work has as main objective to present the definition and properties of geometric progressions of 2nd degree, usually not worked in the study of numerical sequences, that is initiated in the 1st Year of High School. For this, a study of general cases for sequences and series of real numbers is carried out, later, to show applications of the concept in High School. Initially the definitions and properties of sequences and series are presented to the student, which requires a more in-depth study since it is a subject of greater complexity for application in high school classes. These properties are used as tools for the later development of arithmetic and geometric progressions, both 1st and 2nd order. Once the progressions are defined, activities on the subject are applied to the students so that they tell about their facilities and difficulties found in the resolution.
2

Hur läromedel i matematik framställer mönster / How Teaching Materials in Mathematics is Representing Patterns

Strömsjö, Jennie January 2017 (has links)
Skolans matematikundervisning styrs till stor del av läromedel. Dessvärre finns inte så många vetenskapliga studier av de svenska matematikläromedlen. För elevers kunskaper i algebra är arbetet med mönster en viktig del. Därför handlar det här arbetet om hur mönster framställs i några av de vanligaste läromedlen som används i svensk skolas matematik­undervisning idag. Syftet med undersökningen har varit att ta reda på hur utbudet av mönster i läromedlen ser ut och vilket lärande som därmed erbjuds eleverna. Undersökningen har genomförts som en litteraturstudie med drag av en innehållsanalys. Studien har både kvantitativa och kvalitativa inslag.  Fyra serier av läromedel undersöks: Prima, Eldorado, Favorit och Matte Direkt, alla i årskurs 1-6. De böcker som har undersökts är de som eleverna använder i undervisningen och alltså inte lärarhandledningar eller andra böcker. Totalt omfattar undersökningen 43 läroböcker. Data ställs mot de kategorier som TIMSS 2015 har använt vid bedömning. Resultatet ställs mot tidigare forskning om vad som där pekas ut som viktigt för att eleverna ska utveckla en algebraisk förståelse för matematiken. Resultatet av studien är att det är stor skillnad på i vilken omfattning eleverna exponeras för mönster och vilka mönster och talföljder som erbjuds i de olika bokserierna. En förmåga som särskilt studeras i undersökningen är elevernas förmåga att generalisera, vilken är nära sammankopplad till att utveckla algebraiska resonemang. Uppgifter som är till för att låta elever utveckla eller träna på att generalisera samband erbjuds framför allt i de högre årskurserna. Sammanfattningsvis är Prima och Favorit de läromedel som erbjuder eleverna flest möjlighet till möte med mönster. Däremot har Eldorado en större spridning av uppgifter och bedömningskategorier från TIMSS 2015 som prövas. Matte Direkt har inte ett lika stort antal uppgifter och har även ett lite mindre utbud av spridning av olika mönsteruppgifter. Det kan eventuellt påverka elevernas framtida förståelse för algebra. / The teaching in mathematics is (at least in Sweden) to a large extent governed by textbooks. Unfortunately, there is little research about the Swedish teaching materials. One subject that is of particular importance for young students is to develop an algebraic thinking is patterns. Therefore, this study is about how patterns are presented in the most frequently used teaching materials in Swedish classrooms today. The aim is to find out what the teaching materials offer in terms of variation of patterns and number sequences and hence to conjecture what this implies for students’ learning. It is conjectured through an study about what types of patterns that are treated in the teaching materials and how the tasks in the textbooks are elaborated. Data are compared to research literature on patterns and number sequences and what has been shown to be necessary for students to attend to in order to develop an algebraic thinking. Data are also compared with the categories which TIMSS 2015 use in their assessment. The method that has been used in the study is influenced by content analysis. The study used mixed methods, meaning both quantitative and qualitative methods. The teaching materials being investigated are Prima, Eldorado, Favorit and Matte Direkt in the years 1-6, and the total number of books is 43. The analysis shows a big difference between the books regarding what types of patterns and tasks are being offered. I argue that students are given different opportunities to develop their abilities depending on what teaching materials they come across in the teaching. The students get opportunity to develop the ability to generalize mostly in higher grades. In summary, the teaching materials that offer students the most opportunities to meet patterns is Prima and Favorit. On the other hand, Eldorado has a larger diversity when it comes of tasks and assessment categories, as being compared to TIMSS 2015 framework. Matte Direkt has not that large number of tasks and offers a small supply of variation.  It may affect the students’ later understanding of algebra.

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