AbstrakPenelitian ini tentang penggunaan model Problem-Based Learning (PBL) berbantuan Geogebra dalam pembelajaran matematika yang dimaksudkan sebagai salah satu upaya untuk meningkatkan kemampuan koneksi matematik dan motivasi belajar siswa. Subjek pada penelitian ini adalah sisw kelas IX-B SMP Negeri 1 Cianjur. Instrumen yang digunakan adalah tes kemampuan koneksi matematik, angket, dan jurnal. Penelitian ini dilaksanakan sebanyak dua siklus, dimana setiap siklus terdiri dari dua kali pertemuan dan satu tes siklus, setiap siklus terdiri dari 4 kegiatan utama, yaitu perencanaan, tindakan, pengamatan, dan refleksi. Dari hasil penelitian diperoleh adanya peningkatan rata-rata kemampuan koneksi matematis siswadari pembelajaran sebelumnya. Ketuntasan belajar secara klasikal telah mencapai ketuntasan belajar yang ideal, yaitu 86,8% dari jumlah siswayang telah mencapai ketuntasan belajar. Sementara motivasi belajar siswapada umumnya positif model Problem-Based Learning (PBL) berbantuan Geogebra dalam pembelajaran matematika. Pembelajaran dengan pendekatan ini membuat siswa lebih mudah memahami materi yang diberikan dan siswa lebih termotivasi untuk belajar matematika. Kata Kunci :    Model Problem-Based Learning (PBL), Sofware Geogebra, Kemampuan Koneksi Matematik, Motivasi Belajar.

AbstrakTujuan artikel ini adalah untuk mendeskripsikan resiliensi matematik mahaisiwa dengan pendekatan explisit instruction integrasi peer instruction pada matakuliah Struktur Aljabar I.  Untuk mendapatkan data hasil penelitian digunakan instrumen berupa tes soal Ujian Akhir Semester untuk mengetahui kemampuan matematis mahasiswa dan angket resiliensi matematik. Hasil penelitian menunjukkan bahwa pembelajarannya menggunakan pendekatan explisit instruction integrasi peer instruction memiliki resiliansi matematik sebagian besar positif, artinya mahasiswa memiliki sikap menyesuaikan diri terhadap pembelajaran matematika, yang memungkinkan mereka untuk terus belajar meskipun hambatan dan kesulitan terjadi, tekun, yakin dan tidak menyerah dengan kegagalan, mau mencoba ide-ide baru untuk menyelesaikan masalah matematis, mau bersosialisasi dan berdiskusi dengan lingkungan atau teman untuk mencari solusi lain dan menggunakan pengalaman kegagalannya untuk membangun motivasi dalam memunculkan ide dan menyelesaikan masalah matematis. AbstractThe purpose of this article is to describe the resilience of mathematics mahaisiwa with explicit explanation instruction of peer instruction integration in Algebra Structure I course. To get the result of research data used instrument in the form of test about final exam of Semester to know mathematical ability of student and mathematical resilience questionnaire. The result of the research indicates that the learning using explicit instruction approach of peer instruction integration has mostly positive mathematical resonance, meaning that students have the attitude of adjusting to mathematics learning, which enables them to keep learning even though obstacles and difficulties occur, assiduous, confident and do not give up with failure, want to try new ideas to solve mathematical problems, want to socialize and discuss with the environment or friends to find other solutions and use the experience of his failure to build motivation in generating ideas and solve mathematical problems.

This research aims to describe the mathematical representation abilities of vocational school students in terms of visual, auditory, and kinesthetic learning styles, as well as learning styles that have the best representational abilities in mathematics learning. The research was conducted at SMK Negeri 2 Cilaku Cianjur. The research method used is descriptive research with a quantitative approach. The subjects in this study were all 29 students of class X TKJ 2 with purposive sampling technique. The data used are written tests to reveal mathematical representation abilities, observation and questionnaires to classify students based on learning styles, interviews with students. Data processing used descriptive analysis of the percentage of posttest scores, learning styles by looking at the percentage of observation statements and answers to student questionnaire statements. The results of the data analysis showed that the percentage of achievement of the mathematical representation ability of students with a visual learning style was 71.43% in the sufficient category, students with the auditory learning style 71.25% in the sufficient category, and students with the kinesthetic learning style 73.89% with the sufficient category. The kinesthetic learning style has the best representation ability in mathematics learning with a percentage of 73.89% with a sufficient category.

Changes to the curriculum in Indonesia have also caused changes in the learning process. Students are required to play an active role in classroom learning, while teachers only act as facilitators. So that in this curriculum, students are expected to have self-regulated learning. But also, another aspect that must still be had by students is a good understanding of concepts, especially in a material that is considered difficult like mathematics. One alternative way that can be done to achieve both aspects is the use of instructional media, such as interactive multimedia. One interactive multimedia that can be used is the Macromedia Flash Professional 8 application. This study aims to compare two groups with different treatments on trigonometry material. This study uses a quasi-experimental method with the non-equivalent control group design. This study was divided into two groups; the first group was given learning using flash media as an experimental group and the second group as a control group using ordinary learning. The sample in this study was taken from two classes of thirteen classes with purposive sampling, namely class X RPL 2 and X AKKUL 1 in SMK Negeri 1 Cianjur. Data were analyzed using the Mann Whitney Test and the Independent Sample t/t′-test. The results showed that the achievements and increased ability to understand mathematical concepts from the experimental group were significantly better than the control group. Based on N-gain criteria, the increased is including the medium category. At the same time, the self-regulated learning of the experimental group is the same as the self-regulated learning of the control group.

The purpose of this study is to determine the achievement and improvement of students' mathematical problem solving skills using learning approaches Realistic Mathematics Education, as well as to know the attitude of students using the approach of learning Realistic Mathematics Education. The research method is quasi experiment with Nonequivalent group pretest-postest design. The experimental class gained learning with the approach of Realistic Mathematics Education and control class with ordinary learning. The population of the study were students of class VIII MTs Negeri 1 Cianjur. The samples used as many as 2 classes from eight classes were chosen by purposive sampling technique. To get the data of research result used the test instrument of mathematical problem solving ability and student questionnaire. Data processing achievement of students 'mathematical problem solving ability using percentage of students posttest score, improvement of students' mathematical problem solving ability using Mann-Whitney, student attitude data using percentage of questionnaire answer each student. Based on data analysis, the achievement of students' mathematical problem solving ability using the approach of Realistic Mathematics Education is very low, the achievement of students using the usual learning is very low, the improvement of students' mathematical problem solving skills using the Realistic Mathematics Education approach is better than the improvement of students' mathematical problem solving ability using ordinary learning with medium category, and student attitude toward learning using Realistic Mathematics Education approach is mostly positive.