## Relevansen av trigonometri : En studie i to deler på relevansen av trigonometri for elever på videregående skole

##### Master thesis

##### Permanent lenke

http://hdl.handle.net/11250/2491868##### Utgivelsesdato

2017##### Metadata

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##### Sammendrag

The topic of this master’s thesis is the relevance of mathematics, especially the relevance of
trigonometry. Many students ask the question “why do I need to learn about this”. The aim of
this study was to give the students an answer to this question. In the research literature, I
found that this question has to do with relevance, and that relevance is a connection between
people, an activity and future goals. In particular, one needs to question: relevance of what?
relevance according to whom? relevance for whom? And relevance to what end?
The empirical part of my research consisted of two studies. In Study 1 the purpose was to find
out in which contexts outside school trigonometry is used. This information was obtained by
asking experts from the university through email. In study 2 I used the information I got from
study 1 to make a poster aiming at providing students an answer to why they need to learn
about trigonometry. This poster was developed in several rounds, showing it to teachers,
before I was finally satisfied to use it with students. The final version of the poster was
showed to six students in upper secondary that I also interviewed. I used Cultural-historical
Activity Theory to analyse the results and to find out what the students thought about the
poster and the relevance of trigonometry.
The research question were 1) how can the question “why do I need to learn about
trigonometry” be answered? and 2) what are students view on my poster aiming to answer the
question “why do I need to learn about this”? I also had a hypotheses that the students have
little knowledge about applications of mathematics, and that they want this information.
My results indicate that 1) trigonometry is used in many different fields and are potentially
relevant to the students. And 2) the students received the poster well and generally they meant
that knowing about applications is motivating. The results also indicate that that my
hypothesis is largely true. The students did know about some of the applications of
trigonometry, and they want to know more. Some of the students expressed that it should not
be spent too much time on this, but a little could be fun.
Keywords: Mathematics, Education, Relevance, Upper secondary, Trigonometry

##### Beskrivelse

Masteroppgave matematikkdidaktikk MA502 – Universitetet i Agder 2017