Heni Pujiastuti
Jurusan Pendidikan Matematika FKIP Universitas Sultan Ageng Tirtayasa

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Journal : Symmetry: Pasundan Journal of Research in Mathematics Learning and Education

KEMAMPUAN PENALARAN MATEMATIS: ANALISIS BERDASARKAN GAYA KOGNITIF SISWA Mirlanda, Ela Priastuti; Pujiastuti, Heni
Symmetry: Pasundan Journal of Research in Mathematics Learning and Education Vol 3 No 2 (2018): Symmetry: Pasundan Journal of Research in Mathematics Learning and Education
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Pasundan Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (676.237 KB) | DOI: 10.23969/symmetry.v3i2.1251

Abstract

Penelitian ini bertujuan untuk menganalisis kemampuan penalaran matematis siswa SMA yang ditinjau dari gaya kognitif Field Independent dan Field Dependent. Populasi dalam penelitian ini adalah siswa kelas X SMA Negeri 1 Rangkasbitung dengan sampel sebanyak dua kelas. Instrumen penelitian berupa tes GEFT untuk mengukur gaya kognitif dan tes tulis berbentuk essay untuk mengukur kemampuan penalaran matematika. Penelitian ini menunjukkan bahwa dari 45% siswa yang memiliki gaya kognitif field dependent (FD) memiliki nilai rata-rata tes kemampuan penalaran matematis sebesar 58,95 sementara 55% siswa yang memiliki gaya kognitif field independent (FI) memiliki nilai rata-rata tes kemampuan penalaran matematis sebesar 61,87. Hasil uji statistik menunjukkan gaya kognitif Field Dependent berpengaruh terhadap kemampuan penalaran matematis sebesar 14,6% dan gaya kognitif Field Independent berpengaruh terhadap kemampuan penalaran matematis sebesar 31,3%. Dari tiga indikator kemampuan penalaran matematis yang diteliti, kemampuan menggunakan pola, menganalisis situasi matematis dan memberi penjelasan menggunakan model dalam penyelesaian masalah matematika merupakan hal yang masih sulit dikuasai oleh siswa. Sementara kemampuan melaksanakan perhitungan berdasarkan aturan atau rumus tertentu telah dikuasai oleh siswa dengan nilai rata-rata baik. Untuk itu kegiatan pembelajaran matematika harus dirancang sedemikian rupa agar dapat menumbuhkan dan mengembangkan kemampuan penalaran matematis siswa. Gaya kognitif Field Independent dan Field Dependent dapat menjadi dasar / landasan untuk guru merancang pembelajaran yang sesuai dan tepat.
ANALISIS KEMAMPUAN PEMAHAMAN MATEMATIS SISWA SMP PADA MATERI HIMPUNAN Rahayu, Yuyun; Pujiastuti, Heni
Symmetry: Pasundan Journal of Research in Mathematics Learning and Education Vol 3 No 2 (2018): Symmetry: Pasundan Journal of Research in Mathematics Learning and Education
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Pasundan Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.619 KB) | DOI: 10.23969/symmetry.v3i2.1284

Abstract

This research is a type of descriptive research that aims to describe the ability to understand students' mathematical concepts in solving problems, especially related to the concept of set. The subjects of this study were seventh grade students of SMP Negeri 1 Cibadak Lebak Regency 2018/2019 Academic Year as many as 30 people. The instrument used in this study is a test of mathematical comprehension ability in the form of description. The data obtained were analyzed descriptively to find out the mean, mode, percentage of ideal scores, standard deviations and variances. In addition, it also describes the ability of students' mathematical understanding for each indicator. The results of the analysis are obtained: 1) Overall the average ability of students' mathematical understanding is 70% of the ideal score; 2) The average mathematical ability of students on indicator 1 is 56% of the ideal score; 3) The average ability of students on indicator 2 is 88%; 4) The average mathematical ability of students on indicator 3 is 79% of the ideal score; 5) The average mathematical ability of students on indicator 4 is 54% of the ideal score; 6) The average mathematical ability of students on indicator 5 is 84% ​​of the ideal score. The ability of students' mathematical understanding based on the average of each indicator, the lowest is the fourth indicator, namely the ability to present the concept. And the highest average is the second indicator, namely the ability to identify examples and not examples because the questions given are counted easily. Included in the category of very high mathematical understanding ability there are 7 people, 11 people high, 8 people enough, and 4 people low. Overall students who are able to understand mathematically 18 people who get a score above KBM (Minimum Learning Criteria) of 30 students.