Penelitian ini dilatarbelakangi oleh kesulitan siswa dalam pelajaran matematikayang berakibat bnyaknya siswa melakukan kesalahan dalam menyelesaikan soal matematika. Penelitian ini bertujuan untuk menganalisis kesalahan-kesalahan yang dilakukan siswa dalam menyelesaikan soal matematika pada materi Barisan dan Deret. Jenis penelitian ini adalah penelitian deskriptif kualitatif. Subjek dalam penelitian ini adalah 23 orang siswa kelas XI MIPA 2 SMAN 1 Bangkinang Kota Semester Genap. Teknik pengumpulan data yang digunakan yaitu dengan tes tertulis dan dokumentasi hasil jawaban siswa. Instrumen yang digunakan adalah 8 soal uraian yang terdiri atas 2 soal untuk masing-masing materi barisan aritmetika, deret aritmetika, barisan geometri dan deret geometri. Kesalahan siswa dianalisis berdasarkan objek matematika Soedjadi yaitu, fakta, konsep, prinsip dan operasi. Hasil analisis yang dilakukan, diperoleh kesalahan terbanyak yang dilakukan siswa dalam menyelesaikan soal matematika pada materi barisan dan deret adalah kesalahan fakta dengan rata-rata persentase 8,69%.
This research was done due to the problem found by teachers’ difficulty in developing learning instruments based on the 2013 curriculum. In connection with this, efforts are needed to assist teachers in providing learning instruments that are in accordance with the demands of the 2013 curriculum. The learning instrument form of Syllabus, Learning Implementation Plan (RPP), and Student Worksheets (LKPD). This research aimed to develop mathematics learning instruments. Related to learning management on the 2013 curriculum, one of the recommended learning models is Problem Based Learning (PBL) model. On this basis, the researcher conducted the development of learning instruments by using PBL models on the material sequence and series of class XI SMA/MA by using the 4-D development model. This research instrument used was the Syllabus, RPP, and LKPD sheets to assess the validity of the learning instrument. The results of validation data analysis obtained an average value of the syllabus is 3,76 with a very valid category, RPP is 3,78 with a very valid category and LKPD is 3,75 with a very valid category. Therefore, it can be concluded that the Syllabus, RPP, and LKPD developed are suitable to use for trials in the learning process.
This study aimed to determine student’s mistakes in solving mathematical problems on the circle in SMAN 1 Bangkinang Kota. This research is a qualitative descriptive study. This research subjects consisted of 34 students consisting of 12 boys and 22 girls. The technique of data collection using a written test. The research instrument used was a learning achievement test consisting of 6 items made by the teacher and based on Basic Competency 3.3 analyze circle analytically. Basic Competency 3.3 developed into six Indicators of Competency Achievement. Each item measures different Indicators of Competency Achievement. Student’s answers were analyzed descriptively qualitatively by looking at the type of mistake students made on each item. The result showed that mistakes made by students were fact errors, concept errors, principle errors, and operating errors. The mistakes made by students are caused by students not being careful in solving problems and not understanding the rules of algebraic operations. This research result is the kind mistakes of most students do is operating errors as much as 46,47%; then students do concept errors as much as 33,80%; principle errors as much as 15,49%; and fact errors as much as 4,22%.
Penelitian ini bertujuan mendeskripsikan kemampuan pemecahan masalah matematis (KPMM) siswa dan kaitannya dengan gaya belajar siswa khususnya pada materi Sistem Persamaan Linear Tiga Variabel. Penelitian ini menggunakan metode campuran, dengan menggabungkan penelitian kuantitatif dan kualitatif. Subjek dalam penelitian ini adalah siswa kelas XI SMAN 1 Bangkinang Kota Tahun Pelajaran 2021-2022 sebanyak 20 orang. Instrumen yang digunakan adalah tes kemampuan pemecahan masalah matematis yang terdiri atas 5 butir soal dengan 4 indikator KPMM menurut Polya dan angket gaya belajar siswa. Hasil penelitian ini menunjukkan bahwa kemampuan pemecahan masalah siswa pada indikator memahami masalah berada pada kriteria sangat rendah dengan persentase per indikator 40%, indikator merencanakan pemecahan masalah berada pada kriteria sangat rendah dengan persentase 36%, indikator menyelesaikan rencana pemecahan masalah berada pada kriteria sangat rendah dengan persentase 36% dan indikator menafsirkan hasil yang diperoleh berada pada kriteria sangat rendah dengan persentase 22%. Kemampuan pemecahan masalah matematis tidak memiliki kaitan dengan gaya belajar yang dimilikioleh siswa. Setiap siswa dengan gaya belajar apapun memiliki kecendrungan yang sama dalam memecahkan masalah. Berdasarkan hasil penelitian menunjukkan bahwa siswa tidak terbiasa mengerjakan soal-soal non rutin seperti soal-soal pemecahan masalah, sehingga siswa perlu untuk dibiasakan mengerjakan soal-soal non rutin khususnya yang dapat melatih kemampuan pemecahan masalah siswa.
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