ANALISIS PENGGUNAAN VISUAL MEDIATOR KETIKA MAHASISWA MELAKUKAN PENALARAN STATISTIS

Desi Rahmatina(1*), Enditiyas Pratiwi(2),

(1) Universitas Maritim Raja Ali Haji
(2) Universitas Borneo Tarakan
(*) Corresponding Author


Abstract


Abstrak 

Visual mediator dapat digunakan sebagai alat bantu berpikir dalam wacana matematika, dan merupakan bagian penting dalam proses berpikir. Kajian ini bertujuan untuk menganalisis penggunaan visual mediator ketika mahasiswa melakukan penalaran statistis. Jenis penelitian ini adalah penelitian kualitatif. Mahasiswa yang terlibat dalam kajian ini sebanyak 42 mahasiswa. Empat diantara 42 mahasiswa tersebut merupakan subjek dalam penelitian ini. Teknik pengumpulan data adalah hasil tes tertulis dan hasil wawancara. Satu soal diberikan kepada mahasiswa. Soal tersebut memuat pertanyaan yang menuntut mahasiswa melakukan penalaran statistis. Analisis data dilakukan dengan cara mengidentifikasi peran visual mediator yang digunakan mahasiswa ketika mereka melakukan penalaran statistis. Hasil penelitian ini menunjukkan bahwa: 1) visual mediator dapat digunakan sebagai objek awal dan juga sebagai objek final untuk mempermudah dalam menghasilkan substantiation narrative, 2) visual mediator berupa grafik merupakan objek yang dapat mempermudah dalam membuat prediksi data time series, 3) diperlukan penggabungan berbagai visual mediator untuk memberikan substantiation narrative yang tepat dalam membuat kesimpulan dan prediksi data,  4) visual mediator yang sama pada individu berbeda dapat menghasilkan substantiation narrative berbeda dalam membuat kesimpulan dan memprediksi data.  Kajian ini memberikan implikasi bahwa penggunaan berbagai visual mediator merupakan aspek penting dalam memahami objek serta berperan menghasilkan substantiation narrative ketika melakukan penalaran statistis.

 

Abstract

Visual mediators can be used as thinking aids in mathematical discourse and an important part of the thinking process. This study aims to analyze the use of visual mediators when students perform statistical reasoning. This type of research was qualitative research. There were 42 students involved in this study. Four of the 42 students were subjects in this study. Data collection techniques are the results of written tests and interviews. One question given to students. The question contains questions that require students to do statistical reasoning. Data analysis was carried out by identifying the visual role of the mediator used by students when they did statistical reasoning. The results of this study indicate that: 1) visual mediators could be used as initial objects and also as final objects to make it easier to produce substantiation narratives, 2) visual mediators in the form of graphs are objects that can make it easier to predict time series data, 3) it is necessary to combine various visual mediators to provide the right substantiation narrative in making conclusions and predict data, 4) the same visual mediator by different individuals can produce different substantiation narratives in making conclusions and predicting data. This study implies that using various visual mediators is an important aspect of understanding objects and plays a role in producing them.

 

 

 

 


Keywords


penalaran statistis, substantiation narrative, visual mediator.

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DOI: http://dx.doi.org/10.24127/ajpm.v12i1.6080

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