This article discusses about what conceptual understanding is in learning of mathematics and how conceptual understanding could be developed in a student’s thinking. As we know, generally, at least there are two types of learning that we have already experienced until right now, they are rote learning and meaningful learning, where each type has itself characteristic different from each other. The fundamental difference between the two types of learning is that rote learning emphasizes on memorizing structurally meanwhile meaningful learning focusing on understanding concepts learned. Therefore, teachers should carefully consider suitable strategies of teaching before deciding which types of learning could be developed in students’ thinking, and teachers need to pay attention to the effectiveness of teaching and learning in order to help students achieving a conceptual understanding.

Developing PISA like mathematics problems using daily life context helps to improve the quality of learning. This study aimed to generate a valid, practical, and having potential effects on mathematics literacy ability PISA like mathematics problems with the context of sailing in the 2018 Asian Games. This research involved three expert reviews and 32 fifteen-years-old tenth-grade students of SMA N 10 Palembang, a public senior high school in Palembang Indonesia, as the research subjects. This study used the design research method of development studies type. The data were collected through documentation, walkthrough, tests, and interviews. The problem developed in this study is related to the length of wood required to span the sail. The results show that the problems are valid. The validity was viewed from its compatibility with the PISA framework, in which it had related the problems with daily life context of sailing in the 2018 Asian Games and space and shape content. The problems are also practical, viewed from students' understanding of the problem. And, the problems have potential effects when tested in learning issue of mathematical literacy ability. The dominant ability is reasoning and representation ability, while the communication ability is still low because the students do not give detailed answers.

This research aims to produce a valid, practical, and having potential effects PISA-like mathematics problems using taekwondo context in Asian Games. The subjects were MIA 3 student of SMA 10 Palembang. This study was design research of development study in which had two stages: the preliminary and formative evaluation. The formative evaluation includes self-evaluation, one-to-one and expert review, small group, and field test. The context is used to have the students estimate maximum numbers of exercising athletes in a hall with a specific size. The result of the analysis shows that the problems which were reviewed by three expert reviews are valid qualitatively based on the PISA framework; it is also practical and easy to understand the problem. Based on the analysis of students’ answer, the developed problems display potential effects on student’s diverse basic mathematical abilities on the various process of answering the problems. The basic mathematics abilities emerging among which are reasoning and argument ability. It appears that students can develop and solve the problem by modeling using their assumptions. Also, the other ability is designing strategies to solve problems in which students use various procedures in solving problems leading the conclusion.

Penelitian ini merupakan penelitian deskriptif kualitatif yang bertujuan untuk mengetahui dan mendeskripsikan kesalahan siswa dalam menyelesaikan soal olimpiade SMP konten aljabar. Jenis penelitian yang digunakan adalah studi kasus. Subjek penelitian adalah perwakilan siswa kelas IX SMP Negeri 1 Palembang dengan jumlah siswa 22 orang. Teknik pengumpulan data pada penelitian adalah tes tertulis dan wawancara. Analisis data tes dan wawancara mengikuti prosedur Newman Error Analysis. Hasil penelitian menunjukkan bahwa kesalahan-kesalahan yang dilakukan siswa dalam menyelesaikan soal olimpiade SMP konten aljabar terdiri dari kesalahan dalam memahami soal, kesalahan dalam transformasi meliputi penggunaan rumus atau prosedur tidak relevan dan tidak mengetahui prosedur yang digunakan, dan kesalahan dalam proses perhitungan meliputi kesalahan menggeneralisasi pola ke bentuk umum dan tidak menyelesaikan prosedur penyelesaian. Students’ error in solving junior high school Olympiad problem on algebra content AbstractThis research is a qualitative descriptive research that aims to find out and to describe the students’ error in solving junior high school Olympiad on algebra content. Type of this research is case study. The subjects of the study were the students of class IX SMP Negeri 1 Palembang with 22 students. Data collection techniques in this research are written tests and interviews. Analysis of test and interview data follows Newman Error Analysis procedure. The results of the research show that the students’ error in solving junior high school problem on algebra content consist of errors in understanding the problem, error in transformation error includes the use of irrelevant formulas or procedures and do not know the procedures used, and errors in the calculation process include errors generalize patterns to the general form and did not complete the settlement procedure

Penelitian ini bertujuan untuk melihat respons dan hasil belajar siswa setelah diterapkan strategi probing prompting dalam pembelajaran matematika materi relasi dan fungsi di SMP. Metode penelitian yang digunakan adalah deskriptif kuantitatif dan kualitatif, dengan teknik pengumpulan data terdiri dari observasi, tes, dan wawancara. Subjek penelitian adalah siswa kelas VIII.3 di SMP Negeri 1 Indralaya Selatan. Hasil penelitian menyatakan bahwa respons siswa dalam pembelajaran matematika materi relasi dan fungsi tergolong Baik dengan rata-rata 71,19. Siswa telah mampu memberikan tanggapan dan menjawab dengan baik setiap pertanyaan yang dikemukakan oleh guru. Hasil belajar siswa tergolong Baik dengan rata-rata 71,92. Siswa sudah bisa menjawab soal dengan level C1 dan C2, walaupun masih mengalami kesulitan pada saat menyelesaikan soal dengan level C4.