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Rusdian Rifai
Universitas Pendidikan Indonesia
Agriculture, Biological Sciences & Forestry Chemistry Education Mathematics Physics

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Increasing Students' Mathematical Communication Ability Through Web-Based Learning Rusdian Rifai; Yaya Sukjaya Kusumah
Jurnal Analisa Vol 8, No 2 (2022): Volume 8 Nomor 2 Tahun 2022
Publisher : Department of Mathematics Education, UIN Sunan Gunung Djati Bandung, West Java, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ja.v8i2.19989

Abstract

Penelitian ini bertujuan untuk mengetahui peningkatan kemampuan komunikasi matematis siswa dengan pembelajaran berbasis web. Subjek penelitian ini adalah siswa kelas X yang diambil 2 kelompok. Kelompok pertama sebagai kelompok eksperimen yang diberi perlakuan pembelajaran berbasis web dan kelompok kedua sebagai kelas kontrol yang diberi perlakuan pembelajaran ekspositori. Pembelajaran yang tepat dapat meningkatkan kemampuan komunikasi matematis dengan salah satu indikator yang diperlukan yaitu menyatakan situasi matematik atau peristiwa sehari-hari ke dalam model matematika dan menyelesaikannya. Metode pengumpulan data menggunakan metode kuasi eksperimen dan teknik sampling yang digunakan dalam penelitian ini adalah purposive sampling. Diperoleh hasil perhitungan bahwa thitung > ttabel hal ini berdasarkan dari uji t N-gain dimana thitung = 2,22 dan ttabel = 2,01063 pada tarap signifikan 0,05. Hal ini menyimpulkan bahwa terdapat peningkatan kemampuan komunikasi matematis siswa X  dengan pembelajaran berabasis web. This study aims to determine the increase in mathematical communication skills of class X SMK Dwi Putra Bangsa with web-based learning. The subjects of this study were students of class X SMK Dwi Putra Bangsa who were taken in 2 groups. The first group as an experimental group that was given web-based learning treatment and the second group as a control class that was given conventional learning treatment. Appropriate learning can improve mathematical communication skills with one of the indicators needed, namely expressing mathematical situations or everyday events into a mathematical model and solving them. The data collection method used was a quasi-experimental method and the sampling technique used in this study was purposive sampling. The results of the calculation that tcount> ttable, this is based on the N-gain t test where tcount = 2.22 and ttable = 2.01063 at a significant tarap 0.05. This concludes that there is an increase in the mathematical communication skills of students X SMK Dwi Putra Bangsa with web-based learning.
Improving Junior High School Students' Mathematical Understanding Ability Through Powerpoint Assisted Visual Media Rusdian Rifai; Turmudi; Jarnawi Afgani Dahlan; Suhendra
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 9 No 1 (2024): July
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v9i1.5932

Abstract

Students typically have less interest in learning mathematics because it is still seen as a challenging subject. As a result, when compared to other disciplines, the pupils' mathematics understanding abilities remained below average. The aim of this study was to find out how employing visual aids, such as PowerPoint, to teach geometric shapes to students improved their mathematical comprehension skills. This kind of study uses a random subject posttest design and is therefore quasi-experimental. The population of this study consisted of students in class VIII SMPN 1 Pagelaran; the samples were drawn using the purposive sampling technique from students in class VIII C, which was the experimental class, and class VIII D, which was the control class. The t-test, homogeneity test, and normalcy test are the data analysis methods employed. With a significant rate of0.05, the testing results for the hypothesis produced tstat= 3.2 > ttable= 1.6801. This indicates that while Ha is acceptable, Ho is denied. This demonstrates how employing PowerPoint-assisted visual aids in mathematics instruction increases students' capacity for mathematical knowledge.
Implementation of Open-Ended Approach in Mathematics Learning to Improve Learning Independence of Vocational High School Students Rusdian Rifai; Turmudi; Jarnawi Afgani Dahlan; Suhendra
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 10 No 1 (2025): July
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v10i1.6710

Abstract

This study aims to analyze the effectiveness of mathematics learning with an open-ended approach in improving the learning independence of Vocational High School (SMK) students. This study uses a quasi-experimental method with a pretest-posttest control group design involving two groups of class XI Computer Network Engineering students (TKJ 1 and TKJ 2). The sample used was 72 students, which were divided into an experimental group and a control group. Data on student learning independence were collected through a learning independence questionnaire consisting of 36 statements that were analyzed using statistical tests with the help of the SPSS version 30 program. The results showed that the experimental group using an open-ended approach experienced a more significant increase in learning independence compared to the control group. This finding indicates that the open-ended approach is effective in improving student learning independence, which is very important in preparing them to face the dynamic world of work. However, the level of student learning independence is still in the low category, which indicates the need for the implementation of advanced strategies to further maximize the potential for student independent learning in the long term.
Co-Authors Jarnawi Afgani Dahlan Suhendra Turmudi Yaya Sukjaya Kusumah