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All Journal Jurnal Daya Matematis JNPM (Jurnal Nasional Pendidikan Matematika)
Wilmintjie Mataheru
Universitas Pattimura, Indonesia
Mathematics

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Komunikasi Matematis Peserta Didik SMP dalam Memecahkan Masalah Sistem Persamaan Linear Dua Variabel Megaria Refwalu; Wilmintjie Mataheru; Christina Martha Laamena
JNPM (Jurnal Nasional Pendidikan Matematika) Vol 6, No 4 (2022)
Publisher : Universitas Swadaya Gunung Djati

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (669.317 KB) | DOI: 10.33603/jnpm.v6i4.7154

Abstract

Komunikasi matematis merupakan kecakapan peserta didik dalam menyampaikan ide-ide matematisnya, baik secara tulisan maupun lisan. Komunikasi matematis diperlukan dalam pembelajaran matematika, terutama saat memecahkan masalah matematika. Penelitian ini bertujuan untuk mendeskripsikan komunikasi matematis peserta didik kelas VIII di salah satu SMP Negeri Kota Ambon dalam menyelesaikan masalah sistem persamaan linier dua variabel, dengan jenis penelitian deskriptif kualitatif. Sumber data, yaitu pendidik matematika dan peserta didiknya. Subjek yang dipilih berdasarkan hasil tes berjumlah 3 orang yaitu 1 subjek dengan nilai matematika tinggi, 1 subjek dengan nilai matematika sedang, dan 1 subjek dengan nilai matematika rendah. Data dikumpulkan menggunakan tes tertulis yang memuat 3 butir soal uraian dan hasil wawancara.  Data dianalisis melalui tahapan reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa subjek T (subjek berkemampuan tinggi) memenuhi semua indikator komunikasi matematis tulisan dan lisan, subjek S (subjek berkemampuan sedang) memenuhi 2 indikator komunikasi matematis tulisan dan lisan, dan subjek R (subjek berkemampuan rendah) hanya memenuhi indikator kemampuan memahami ide-ide matematis secara lisan. Rekomendasi kepada pendidik matematika di sekolah agar dapat menumbuhkembangkan komunikasi matematis peserta didik dan membiasakan peserta didik menggunakan langkah-langkah pemecahan masalah Polya dalam menyelesaikan persoalan matematika. 
Analysis of Students' Metacognition Skills in Problem Solving Viewed from Extrovert Personality Types Fenty Madelin Madubun; Wilmintjie Mataheru; Christina Martha Laamena
Daya Matematis: Jurnal Inovasi Pendidikan Matematika Vol 11, No 2 (2023): Juli
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/jdm.v11i2.48072

Abstract

Metacognition skills, namely planning, monitoring, and evaluation. The purpose of this study was to describe the metacognition of junior high school students in solving problems of extroverted personality types in the matter of a system of two-variable linear equations. This type of exploratory research with a qualitative approach. The subjects consisted of 2 junior high school students with extroverted personality types. Data collection techniques were carried out using personality type questionnaires, tests, and interviews. The research instrument consisted of a personality type questionnaire, test questions and interview guidelines. Data analysis techniques, namely data reduction, data presentation and drawing conclusions. The results showed that the metacognition skills of the two subjects were different in solving problems. S1 and S2 subjects are aware of the planning process by using prior knowledge that can help them solve problems, determine what is known and asked correctly. In the monitoring process, the S1 subject can think of several strategies or methods, carry out the correct completion steps, and re-check the calculations made, whereas the S2 subject is less aware of the mistakes made in the steps of working on the problem he is doing. In the evaluation stage, the S1 subject evaluates the strategy, work steps or calculations in accordance with the objectives of the problem and draws the correct conclusions, while the S2 subject makes mistakes in the steps of working on the problem that he is not aware of and draws conclusions that are not correct.
Co-Authors Christina Martha Laamena Fenty Madelin Madubun Megaria Refwalu