Abstract
The ability of mathematical representation becomes a student bridge to connect abstract ideas with logical thinking in order to understand mathematical problems. This qualitative descriptive study aims to analyze the mathematical representation abilities of class XI.IPA students of SMA Ali Maksum Yogyakarta in the online learning during the Covid-19 pandemic. The instrument used was a mathematical representation ability test and written interview guidelines via google form. The data analysis technique used is interactive analysis with the stages of data reduction, data presentation, and making overall conclusions. Analysis of test result data is used to determine the level of mathematical representation ability of students, while the results of interviews are to strengthen test results and determine student learning constraints. The results of this study indicate that the level of students' mathematical representation skills in verbal forms is included in the high category, while visual and symbolic forms are included in the medium category. Constraints that arise when learning online, such as limited learning time, signal stability, difficulty understanding the material, and lack of freedom to ask questions have an effect on the test results obtained.
Highlights
PENDAHULUAN Salah satu kemampuan matematis yang harus dimiliki oleh siswa yaitu representasi matematis
Analysis of test result data is used to determine the level of mathematical representation ability of students, while the results of interviews are to strengthen test results and determine student learning constraints
The results of this study indicate that the level of students' mathematical representation skills in verbal forms is included in the high category, while visual and symbolic forms are included in the medium category
Summary
Berdasarkan hasil tes dari 38 siswa, terdapat 19 atau 50% siswa mendapatkan skor di atas rata-rata. Maka ditampilkan beberapa hasil pekerjaan siswa dalam menyelesaikan masalah yang diberikan, seperti pada Gambar 1. Dengan persentase sebesar 81,58% siswa bisa mengerjakan dengan prosedur yang tepat dan jawaban yang benar, maka secara keseluruhan dapat disimpulkan bahwa kemampuan representasi matematis verbal siswa dalam kategori tinggi. Guru bisa menggunakan bahan ajar berbasis Joyful Problem Based Learning (JPBL) untuk meningkatkan kemampuan representasi matematis verbal siswa yang dalam prosesnya dibantu dengan gambar (Minarni & Napitupulu, 2017). Hal ini sejalan dengan penelitian (Fitrianna, Dinia, Mayasari, & Nurhafifah, 2018) yang menjelaskan bahwa sebagian besar siswa mampu menggunakan representasi visual untuk menyelesaikan masalah dengan melibatkan ekspresi matematika. Dengan persentase sebesar 71,05% dimana siswa telah mampu merepresentasikan visual menggunakan gambar geometri, maka secara keseluruhan memperlihatkan bahwa kemampuan representasi visual matematis siswa dalam kategori sedang. Penggunaan model pembelajaran berbasis proyek berbantuan geogebra ternyata juga dapat meningkatkan kemampuan representasi visual siswa
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