The purpose of the study is to investigate the Indonesian students’ performance in solving fraction division case including the difficulties, relations, and implications for classroom instruction. This study employed a descriptive case study to achieve it. The procedures of data collecting were initiated by giving a context-based problem to 40 elementary school students and it then according to the test result was selected three students for semi-structure interviewed. The findings of the study showed that the tendency of students’ procedural knowledge dominated to their conceptual knowledge in solving the fraction division problem. Furthermore, it was found several mistakes. First, the students were not accurate when solving the problem and unsuccessful to figure out the problem. Second, students’ conceptual knowledge was incomplete. The last was is to apply the laws and strategies of fraction division irrelevant. These findings emphasized other sub-construct of fractions instead of part-to-whole in the teaching and learning process. Teaching and learning of fraction in the mathematics classroom should take both conceptual and procedural knowledge into account as an attempt to prevent faults and misconceptions. In conclusion, it was substantial to present context-based problems at the beginning of the lesson in order for students to be able to learn fraction division meaningfully.
AbstrakKemampuan guru menghadirkan soal-soal yang memiliki konteks kehidupan sehari-hari sangat dibutuhkan dalam kelas. Penelitian ini bertujuan untuk mendeskripsikan dan menganalisis kemampuan pemodelan matematis siswa dalam menyelesaikan soal matematika kontekstual. Penelitan ini dirasa penting untuk dikaji karena tuntutan pembelajaran yang mengharuskan siswa tidak hanya pandai berhitung tetapi dapat mengaplikasikan matematika dalam kehidupan, sehingga kemampuan pemodelan matematika sebagai jembatan antara masalah matematika dan masalah nyata dirasa penting untuk dimiliki oleh siswa. Subjek penelitian diberikan instrumen berupa soal matematika kontekstual, kemudian peneliti menganalisis hasil kerja subjek serta melakukan wawancara subjek terkait hasil pengerjaan instrumen tersebut. Dari hasil penelitian ini disimpulkan bahwa kemampuan pemodelan matematis siswa beragam, tidak bergantung pada kemampuan matematika siswa tinggi, sedang, rendah; masih ada siswa yang tidak membuat pemodelan matematis karena tidak memahami soal yang diberikan; pemodelan gambar yang dibuat oleh siswa beragam namun sebagian besar masih kurang tepat dalam membuat pemodelan gambar sesuai dengan permasalahan yang diberikan; kemampuan siswa dalam membuat pemodelan matematis sebagian besar masih kurang. Mathematical Modeling Ability in Solving Contextual Mathematical ProblemsAbstractThe teacher's ability to present questions that have the context of everyday life is needed in the classroom. This study aims to describe and analyze students' mathematical modeling abilities in solving contextual math problems. This research is considered important to study because the demands of learning require students not only to be good at arithmetic but also to be able to apply mathematics in life, the ability of mathematical modeling as a bridge between mathematical problems and real problems is considered important for students to have. The research subject was given an instrument in the form of a contextual math problem, then the researcher analyzed the subject's work and conducted subject interviews related to the results of working on the instrument. The results are mathematical modeling abilities of students varied, it did not depend on high, medium, low students' mathematical abilities; There are still students who do not make mathematical modeling because they don't understand the questions given; the forms of image modeling made by students are still diverse but most of them are still inaccurate in making image modeling according to the problems give and making mathematical modeling is still lacking.
Penelitian ini bertujuan untuk mengetahui tingkat kecemasan dan motivasi belajar siswa terhadap matematika berdasarkan gender di masa pandemic COVID-19. Responden dalam penelitian ini sebanyak 451 siswa SMP Negeri kelas 8 di Jakarta Selatan. Jenis instrumen yang digunakan adalah angket. Intrumen terdiri dari pernyataan-pernyataan kecemasan matematika dan motivasi belajar. Analisis data yang digunakan adalah analisis deskriptif. Hasil penelitian menunjukkan bahwa secara keseluruhan kecemasan matematika di masa pandemic COVID-19 termasuk ke dalam kategori sedang. Sedangkan motivasi belajar siswa pada masa pandemic ini termasuk ke dalam kategori tinggi. Selain itu siswa perempuan memiliki tingkat kecemasan matematika yang lebih tinggi ( mean = 2,93 dan SS = 0,01) dari pada siswa laki-laki ( mean = 2,72 dan SS = 0,13). Begitu juga dengan motivasi belajar, siswa perempuan memiliki motivasi yang lebih tinggi ( mean = 3,89 dan SS = 0,07) dibandingkan siswa laki-laki ( mean = 3,79 dan SS = 0,10).
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