Kemampuan representasi matematis yang dimiliki siswa kelas IV SDN 17 Nagri Kaler masih tergolong rendah. Hal itu disebabkan karena dalam proses pembelajaran matematika yang diterapkan di SDN 17 Nagri Kaler masih bersifat konvensional, yaitu pemberian materi langsung pada tahap simbolik, pemberian contoh-contoh serta soal latihan, menyebabkan siswa cenderung menghafal materi dan bekerja secara procedural. Penelitian ini bertujuan untuk: (1) mendeskripsikan langkah-langkah pembelajaran matematika realistik dalam pembelajaran materi pokok pecahan untuk siswa kelas IV SDN 17 Nagri Kaler tahun pelajaran 2014/2015, (2) mengetahui peningkatan kemampuan representasi siswa kelas IV SDN 17 Nagri Kaler tahun pelajaran 2014/2015 tentang materi pokok pecahan melalui pembelajaran matematika realistik. Penelitian ini adalah penelitian tindakan kelas yang dilaksanakan pada siswa kelas IV SDN 17 Nagri Kaler Purwakarta. Berdasarkan data hasil penelitian dapat disimpulkan bahwa penerapan pendekatan matematika realistik dalam pembelajaran dapat meningkatkan kemampuan representasi matematis siswa dan aktivitas siswa kelas IV di IV SDN 17 Nagri Kaler.
The basis of this research is to observe the importance of improving the mathematical communication skill of elementary school students. In this case, this research attempted to discover learning alternative that could improve mathematical communication skill of students by employing Two-Stay Two-Stray (TSTS) cooperative learning model. This research aimed to examine students’ mathematical communication skill and mathematics learning improvement by employing TSTS model. The employed method was a quasi-experiment of the non-equivalent pretest-posttest control group design. The participants for this study were the 5th-grade students of one of the public elementary schools in one of the districts in Purwakarta Regency. In this study, 26 students were employed as participants for each experimental and controlled group. This research discovered that: 1) students’ mathematical communication skill improvement that was taught using TSTS learning model was higher compared conventional model; 2) TSTS model was found influencing the improvement of students’ mathematical communication skill; 3) students’ mathematics learning activity and process was more active and improved with TSTS model.
Covid-19 changes human habits, especially the learning process. Teaching and learning activities that are usually carried out offline now must be online. The research was motivated by the students' assumptions about mathematics which were considered difficult. Students feel overwhelmed when studying mathematics. When faced with math problems, students often don't have the confidence to solve it. The purpose of this study is to determine the increase in self-confidence of students who get online learning using the CPA approach during the Covid-19 pandemic, both in terms of overall, and Initial Mathematical Ability (IMA). This research is a quasi-experimental research with a non-equivalent control group design on Mathematics subjects on the topic of data collection and presentation in fifth-grade elementary schools. The sample consisted of 56 students at one of the elementary schools in Central Jakarta, Indonesia The research instrument used a self-confidence attitude scale given at the beginning before and after the treatment ended. The learning process is carried out online through the Whatsapp Group, Youtube, and Google Form. The research findings showed that online learning using the CPA approach can increase students' self-confidence better than conventional learning, both as a whole, and IMA. Thus, the CPA approach can be used as an alternative to increasing student self-confidence during the Covid-19 pandemic
This research is motivated by the need for effective mathematics learning models for students with Mathematics Learning Disability (MLD) in the elementary schools. The research problem is what learning model that can be used to help children with MLD in understanding numbers concept. This research uses the qualitative method. Research data is obtained from the results of student tests and observation of student and teacher interaction. This research produced a model of number concept learning for students with learning difficulties.
The aim of the research is to develop teaching materials assisted by media construct 2 software that are practical and appropriate for use in the learning process. The research method used is Research and Development (RD) using the ADDIE model. The research was conducted at SMPN 3 Rancabali with 12 class VIII students at Rancabali 3 Middle School for limited trials and 9 students at SMPN 2 Rancabali and 9 students at SMPN 1 Rancabali Public for a wider trial and 27 VIII C class students as an experimental class and 27 class VIII A students as the control class for product trials. The validators consist of ICT experts, subject matter experts and teachers. The data collection technique was in the form of a response questionnaire from students and teachers. The research results of the products developed were in accordance with the ADDIE research method with product feasibility categories based on ICT expert validation of 81.25%, material experts 85% and teachers 88% are all included in the very decent category. Products that have been validated are then tested on students through limited trials, wider trials and product trials and students are given practicality questionnaires with a final average result of 83.56% included in the very practical category. Based on the validation results of ICT experts, material experts and student and teacher responses, it was concluded that the teaching materials assisted by the media construct 2 software are valid and appropriate for use in learning. For further research, the researcher hopes to be able to develop teaching materials better according to the suggestions from the respondents.
This research is motivated by the importance of mathematical reasoning abilities for primary school students. This research aims at looking at the effect of the Concrete-Pictorial-Abstract (CPA) approach on the enhancement of mathematical reasoning abilities of primary school students. This research method is a quasi-experiment with pre-test and post-test control group design in Mathematics subjects with the theme of data presentation. The research sample consisted of 121 fifth grade students in two primary schools in Bekasi Regency. The test and non-test instruments were involved in this research. The results revealed that there wasthe influence between the CPA approach and students' mathematical reasoning abilities, and the achievement and enhancement of mathematical reasoning abilities of students who got learning with the CPA approach werebetter than students who got conventional learning based on all student review and a category of Prior Mathematical Ability (PMA) high, moderate and low. In conclusion, the mathematical reasoning ability of primary school students can be improved by applying the CPA approach.
Penelitian ini dilatarbelakangi oleh kebutuhan akan model-model pembelajaran matematika yang efektif bagi siswa dengan kesulitan belajar matematika di sekolah inklusi. Rumusan masalahnya yaitu “Bagaimanakah model pembelajaran yang dapat digunakan untuk membantu anak kesulitan belajar matematika dalam memahami konsep bilangan?”. Penelitian ini menggunakan metoda Reseach and development (R&D). Data penelitian diperoleh dari hasil tes siswa dan pengamatan interaksi siswa dan guru. Penelitian ini menghasilkan model desain pembelajaran matematika bagi siswa dengan kesulitan belajar. Kesimpulan yang dihasilkan yaitu: (1) Model pembelajaran matematika dapat meningkatkan pemahaman siswa tentang penjumlahan dan pengurangan tiga angka, karena secara umum prestasi belajar siswa sebelum dan sesudah pembelajaran berbeda secara signifikan. (2) Pembelajaran yang berlangsung lebih terpusat pada siswa (student centre), karena aktivitas siswa lebih besar dari pada aktivitas guru. (3) Penggunaan keterampilan alat peraga Matematika siswa meningkat dari pertemuan satu ke pertemuan dua. (4) Tanggapan siswa terhadap model pembelajaran Matematika bersifat positif.
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