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Journal : KALAMATIKA Jurnal Pendidikan Matematika

GAYA KOGNITIF FIELD DEPENDENT TERHADAP PEMAHAMAN KONSEP LIMIT MAHASISWA Nurafni, Nurafni
KALAMATIKA Jurnal Pendidikan Matematika Vol 1, No 2 (2016): KALAMATIKA November 2016
Publisher : FKIP UHAMKA

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Abstract

Penelitian ini merupakan penelitian deskriptif dengan pendekatan kualitatif yang bertujuan untuk mendeskripsikan profil pemahaman konsep limit mahasiswa berdasarkan gaya kognitif field dependent. Subjek penelitian ini adalah mahasiswa semester II UHAMKA Jakarta. Penelitian dimulai dengan menentukan subjek penelitian menggunakan instrumen GEFT serta kesediaan mahasiswa dan hasil konsultasi dengan dosen bidang studi, Kemudian dilanjutkan dengan pemberian tes pemahaman konsep limit fungsi (TPKLF) dan wawancara. Pengecekan keabsahan data menggunakan triangulasi waktu. Hasil penelitian menunjukan bahwa Pemahaman mahasiswa dengan gaya kognitif field dependent terhadap konsep limit ketika menyatakan makna limit yang diberikan menggunakan bahasanya sendiri hanya terpaku pada notasi limit yang diberikan. Subjek tidak dapat dapat mengkaitkan antar apa yang diketahui dalam soal dengan informasi lain yang diberikan. Ketika menggunakan konsep limit untuk menyelesaikan masalah yang diberikan, subjek tidak memenuhi indikator ini dikarenakan subjek menggunakan cara prosedural bukan menggunakan konsep limit yang diketahuinya untuk menyelesaikan masalah yang diberikan. Ketika menggunakan syarat perlu atau syarat cukup untuk menentukan ada atau tidaknya stuatu limit subjek mampu menggunakan syarat perlu untuk menentukan suatu limit jika limit tersebut tidak memiliki syarat yang berbeda. Jika limit yang diberikan memiliki syarat yang berbeda, subjek tersebut tidak dapat menggunakan syarat perlu untuk menentukan ada atau tidaknya suatu limit.
PROFIL PEMAHAMAN KONSEP TEOREMA PYTHAGORAS SISWA BERDASARKAN PERBEDAAN GAYA KOGNITIF FIELD INDEPENDENT DAN FIELD Nurafni, Nurafni; Miatun, Asih; Khusna, Hikmatul
KALAMATIKA Jurnal Pendidikan Matematika Vol 3 No 2 (2018): KALAMATIKA November 2018
Publisher : FKIP UHAMKA

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Abstract

This research is a descriptive qualitative approach which aims to describe profile of understanding of pythagoras theorem concept of students based on the difference of field independent and dependent cognitive style. The subjects of this study are 9th grade students of junior secondary school. Subject determination is done using GEFT instrument and mathematics teacher’s consultation, then continued by giving concept comprehension test on Pythagorean theorem material and interview. Checking the validity of data is done by time’s triangulation. The results showed that student: 1) states the meaning of Pythagoras's theorem given in his own language by noting Pythagorean theorem’s definition; 2) when using the concepts of Pythagoras theorem, students use triangle images as representations to facilitate an interpretation of given sides position. Then the students find the unknown values and use Pythagoras theorem to solve the problem; 3) using the necessary condition or sufficient condition of a concept to determine the area of a triangle using Pythagorean theorem by finding a side. While, the results for field independent cognitive style are student: 1) expresses the meaning of Pythagoras theorem by using their own language and mentioning the symbols; 2) using the concepts of Pythagorean theorem to solve the problem given by using multiplication operations to determine one of unknown sides. Then, student use pythagoras theorem to find the answer of the given problem; 3) using the necessary conditions or sufficient terms a concept of Pythagoras theorem by stating that it must be known two sides or not.
PENGEMBANGAN BAHAN AJAR MATERI INDUKSI MATEMATIKA DAN TEORI BINOMIAL BERBASIS PEMBUKTIAN Nurafni, Nurafni; Miatun, Asih; Khusna, Hikmatul; Jusra, Hella
KALAMATIKA Jurnal Pendidikan Matematika Vol 4 No 1 (2019): KALAMATIKA April 2019
Publisher : FKIP UHAMKA

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Abstract

Students' ability in solving argumentation in mathematical induction and binomial theory is still lacking based on the results of the exam, so that evidence-based teaching materials are prepared. This study uses design research methods with the subject from 2nd semester students of the Mathematics Education Study Program. This research is a development research consisting of 6 stages: Identification of needs, Planning, Initial product development, Initial product testing, Product revision, Field trials so as to produce teaching materials. The results of the lecturer and student validation show that the teaching materials are valid and feasible to use with an average score of 45 and 45,9333. While the test of the effectiveness of teaching materials used using the t-test obtained results that ttest> ttable, 5.83 > 2.11 which means there is an increase in the average value of students before and after using teaching materials. With the increase in value, it indicates that the instructional materials prepared are effectively used.