This study aims to explain the procedural fluency of students in numerical methods courses. Procedural fluency refers to knowledge of procedures, about when and how to use them appropriately, and the skills to carry out procedures flexibly, accurately, and efficiently. The method in this study uses a descriptive method with a qualitative approach and data analysis techniques for the Miles and Huberman models. In this study also performed triangulation of techniques by conducting interviews to strengthen the test result data. From the data analysis, it can be concluded that regarding the smoothness in students' procedural procedures in solving problems related to numerical methods courses, students are able to solve problems with more than one method. However, some students have not been able to streamline steps and make accurate calculations. In addition, mastery in operating a scientific calculator needs to be improved so that students can be more efficient and get more accurate answers.
Kemampuan koneksi matematis merupakan salah satu kemampuan yang sangat penting dan merupakan salah satu standar proses pembelajaran matematika yang dirumuskan oleh NCTM. Apabila siswa tersebut mampu mengaitkan ide-ide yang ada dalam matematika maka pemahaman terhadap matematikanya akan bertahan lama dan semakin mendalam. Begitu pentingnya kemampuan koneksi matematis terhadap suatu pembelajaran, maka dilakukanlah sebuah penelitian dengan tujuan untuk mengetahui kemampuan koneksi matematis siswa serta kesalahan apa saja yang sering dilakukan oleh siswa terkait soal koneksi matematis terhadap materi trigonometri. Penelitian ini menggunakan metode deskriptif kualitatif dengan subjek penelitiannya adalah siswa kelas X OTKP 3 SMK Bunga Persada Cianjur sebanyak 29 orang. Bentuk pengambilan datanya yaitu dengan pemberian soal tes uraian tertulis sebanyak 5 butir soal. Berdasarkan hasil analisisnya, didapatkan bahwa kemampuan koneksi matematis siswa di jenjang sekolah menengah kejuruan (SMK) Bunga Persada Cianjur kelas X OTKP 3 pada materi trigonometri tergolong rendah. Hal ini terlihat dari rata-rata kemampuan koneksi matematis siswa dari setiap indikatornya. Rendahnya kemampuan koneksi matematis tersebut karena ada beberapa kesalahan yang sering dilakukan oleh siswa diantaranya yaitu kesalahan konsep, kesalahan keterampilan komputasi, dan kesalahan interpretasi bahasa.
AbstrakLatar belakang penelitian ini yaitu masih rendahnya kemampuan literasi matematis. Penelitian ini bertujuan mengetahui apakah model pembelajaran Problem Based Instruction (PBI) yang juga sebagai alternatif solusi permasalahan dapat meningkatkan kemampuan literasi matematis siswa. Metode penelitian adalah kuasi eksperimen dengan desain Nonequivalent group pretest-postest design. Instrumen berbentuk tes literasi matematis berupa tes awal (pretest) dan tes akhir (posttest). Populasi penelitian ini adalah seluruh siswa kelas VIII SMP Negeri 5 Cianjur tahun ajaran 2018/2019 yang tersebar dalam sembilan kelas, sedangkan sampelnya dipilih dengan teknik purposive sampling sebanyak dua kelas yaitu kelas VIII D sebanyak 27 siswa sebagai kelas eksperimen yang diberikan perlakuan dengan menggunakan model pembelajaran Problem Based Learning (PBI), dan VIII C sebanyak 25 siswa sebagai kelas control dengan pembelajaran biasa. Berdasarkan penelitian diketahui bahwa terdapat peningkatan kemampuan literasi matematis siswa dengan model pembelajaran Problem Based Instruction (PBI). Peningkatan tersebut lebih baik jika dibandingkan dengan peningkatan pada siswa dengan pembelajaran biasa.Kata Kunci: Kemampuan Literasi Matematis, Problem Based Instruction, PBI. Mathematical Literacy Ability Students through Problem Based Instruction Learning ModelsAbstractThe background of this research is low mathematical literacy ability. The purpose of this research is to find out the differences in increasing students’ mathematical literacy ability between those who use the Problem Based Instruction (PBI) learning model as an alternative solution to the problem and who use ordinary learning. A method in this research is quasi-experimental with nonequivalent group pretest-posttest design. The instruments are a mathematical literacy instrument consisting of the initial test (pretest) and the final test (posttest). The population in this study were all students at SMP Negeri 5 Cianjur in year 2018/2019 that spread into 9th grade, while the samples chosen with purposive sampling technique were two classes, namely VIII D class as the experimental class which is given Problem Based Learning (PBI) and VIII C as the control class with ordinary learning. Based on the tests of mathematical literacy abilities that have been analyzed it is found that there are differences in mathematical literacy skills students who applied the Problem Based Instruction (PBI) learning model is were better than ordinary learning. The increase is better when compared to the increase in students with ordinary learning.Keywords: Mathematical literacy ability, Problem Based Instruction, PBI.
AbstrakPermasalahan yang melatarbelakangi penelitian ini yaitu karena masih rendahnya kemampuan berpikir kreatif matematis siswa. Tujuan penelitian ini untuk mengetahui apakah bantuan media pembelajaran education game yang juga sebagai alternatif solusi permasalahan dapat meningkatkan kemampuan berpikir kreatif matematis siswa. Kuasi eksperimen dengan desain Nonequivalent group pretest-postest design menjadi metode penelitian ini. Instrumen tes berbentuk essai tentang literasi matematis, berupa pretest dan posttest. Seluruh siswa kelas XI MAN 1 Cianjur pada tahun ajaran 2019/2020 menjadi populasinya, sedangkan sampelnya dipilih melalui teknik purposive sampling yaitu kelas XI MIPA 4 sebanyak 25 siswa sebagai kelas eksperimen yang diberikan perlakuan dengan menggunakan education game berbantuan android dan XI MIPA 3 sebanyak 25 siswa sebagai kelas kontrol dengan pembelajaran biasa. Hasilnya, peningkatan kemampuan berpikir kreatif matematis siswa dengan education game berbantuan android lebih baik dibandingkan dengan peningkatan pada siswa dengan pembelajaran biasa. Mathematical Creative Thinking Ability Using Education Game Android Assisted on Sequence and SeriesAbstractThis study aims to determine whether the help of education game learning media which is also an alternative solution to problems can improve students' mathematical creative thinking abilities. The research method used was a quasi-experimental design with a Nonequivalent group pretest-posttest design. The instruments are in the form of a mathematical literacy test in the form of a pre-test and a post-test. The population of this research was all students of class XI MAN 1 Cianjur in the academic year 2019/2020 which were spread out in eleven classes, while the sample was selected by using two purposive sampling techniques, namely class XI MIPA 4 as many as 25 students as an experimental class who were treated using media assistance learning educational games and Mathematics and Natural Sciences 3 as many as 25 students as a control class with ordinary learning. The result is the increase in students' mathematical creative thinking abilities with educational game android assisted is better than the increase in students with ordinary learning.
The role of computers becomes an inseparable part of daily life, including as a media for learning mathematics, including making it easier to visualize 3D objects (building three-dimensional space). GeoGebra is software that can be used for mathematics education by combining geometry, algebra, and calculus. This research is an experimental research and the design used is the nonequivalent control group design. Sampling and sampling in this study using purposive sampling techniques. Based on the different test of the two average gain indexes, it was concluded that improving the problem-solving ability of students who studied using the GeoGebra-assisted problem-based learning approach was better than students who studied with conventional learning. The results of the attitude scale, it was found that in general students are positive towards mathematics learning by using the GeoGebra-assisted problembased learning approach. The results of the bivariate correlation calculation concluded that there is a positive correlation between students 'attitudes towards learning using the application of GeoGebra-assisted problem-based learning and improving students' mathematical problem-solving abilities.
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