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Postulat : Jurnal Inovasi Pendidikan Matematika
Published by Universitas Muhammadiyah Gresik
ISSN : 27230597     EISSN : 27230600     DOI : http://dx.doi.org/10.30587/postulat.v1i1
Core Subject : Education,
Education Mathematics
Postulat: Jurnal Inovasi Pendidikan Matematika (e-ISSN: 2723-0600; p-ISSN: 2723-0597) is a scientific, peer-reviewed and open-access journal which has been established for the dissemination of state-of-the-art knowledge in the field of mathematics education. This journal managed and published by Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Muhammadiyah Gresik, Gresik, Indonesia. Postulat publishes two times a year. The journal consists of high-quality technical manuscripts on advances in the state-of-the-art of mathematics education; both theoretical approaches and practical approaches are encouraged to submit. Submitted papers must be written in Bahasa or English for the initial review stage by editors and further review process by at least two anonymous reputable reviewers. The journal provides a forum for the sharing, dissemination, and discussion of research, experience, and perspectives across a wide range of education, teaching, development, instruction, educational projects and innovations, learning methodologies, and new technologies in mathematics education for authors and readers worldwide. The focus and scope of Mathematics Education Journal include the following topics Realistic Mathematics Education (RME) or Pendidikan Matematika Realistik Indonesia, Design/Development Research in Mathematics Education, Mathematics Ability, and PISA Task
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 10 Documents
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Search results for , issue "Vol 1 No 2 (2020)" : 10 Documents clear
Peningkatan Hasil Belajar Pada Materi Transformasi Melalui Model PBL Pada Siswa SMP Kristen Gloria 1 Dyah Pitaloka Agung Putri Perdhani
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 1 No 2 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (282.755 KB) | DOI: 10.30587/postulat.v1i2.2089

Abstract

Hasil belajar merupakan interaksi dalam proses pembelajaran. Dari sudut pandang guru, hasil belajar dapat berupa sikap, pengetahuan atau kognitif, dan keterampilan atau psikomotor. Guru dapat mengukur perubahan diri peserta didik dalam bentuk evaluasi belajar dalam mencapai tujuan pembelajaran yang telah ditetapkan. Penelitian ini bertujuan untuk meningkatkan hasil belajar peserta didik melalui model Problem Based Learning. Jenis penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan di SMP Kristen Gloria 1 Surabaya. Subjek penelitian adalah kelas IX C yang berjumlah 24 siswa. Metode pengumpulan data adalah observasi, dokumentasi, dan tes. Metode tes digunakan untuk mengukur peningkatan hasil belajar siswa pada aspek kognitif dan psikomotor. Hasil penelitian menunjukkan hasil belajar siswa aspek kognitif mengalami peningkatan dari 71,21 dengan tingkat ketuntasan 70,8% menjadi 81,25 dengan tingkat ketuntasan akhir 83,33%. Sedangkan pada aspek psikomotor mengalami peningkatan dari 75,0 dengan tingkat ketuntasan 109 110 Dyah Pitaloka Agung Putri Perdhani : Peningkatan Hasil Belajar ….. 70,8% menjadi 86,81 dengan tingkat ketuntasan akhir 87,5%. Dari penelitian ini dapat disimpulkan bahwa penerapan model Problem Based Learning dapat meningkatkan hasil belajar matematika
Analisis Kemampuan Komunikasi Matematis Peserta Didik SD Dalam Menyelesaikan Soal Matematika Ditinjau Dari Kecerdasan Emosional Lisa Cahyanti; Sarwo Edy
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 1 No 2 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (286.975 KB) | DOI: 10.30587/postulat.v1i2.2108

Abstract

One of the goals of mathematics is to communicate ideas by using symbols, tables, diagrams, or other media to explain problems or circumstances. Based on the objectives of mathematics learning, the mathematical communication skills of students need to be considered. But many students have difficulty communicating to their mathematical understanding. This is influenced by several factors, one of them is the emotional intelligence of students.This type of research is descriptive with a qualitative approach that aims to describe how students' mathematical communication skills in solving mathematical problems based on the level of emotional intelligence. The subjects of this research are the IVC grade students elementary school of Muhammadiyah Manyar in the academic year 2019 - 2020. This study consists of three students consisting of one student who has high emotional intelligence, one student who has moderate emotional intelligence, and one student who has low emotional intelligence. The methods used in this study are emotional intelligence questionnaire, students' mathematical communication skills test, and interviews. The results of the study indicate that students who have high emotional intelligence have high mathematical communication skills that are also able to illustrate the picture completely, solve coherently and correctly, and provide conclusions correctly. Students with a moderate level of emotional intelligence, have moderate mathematical communication skills, are able to illustrate almost exact and complete images, are able to finish coherently, and are not careful about answers that have been written. Students with low levels of emotional intelligence, have low mathematical communication skills, are able to illustrate almost exact images, find it difficult to write down information that is known and asked, and do not provide conclusions on answers.Keywords: Emotional Intelligence, Mathematical Communication Skills
Penentuan Pengelompokan Penjualan dengan Kombinasi K-Means dan Hamming Distance Retno Tri Vulandari; Dwi Remawati
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 1 No 2 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (552.911 KB) | DOI: 10.30587/postulat.v1i2.2090

Abstract

Penentuan penjualan dapat dilakukan dengan berbagai cara. Pengelompokan penentuan penjualan, terdiri dari barang yang laku dan tidak laku. Hasil pengelompokan digunakan sebagai pertimbangan dalam memproduksi barang dan menentukan strategi pemasaran. Penghitungan yang dilakukan pada penelitian ini menggunakan metode K-Means Clustering dan Hamming Distance. Data atribut terdiri dari data non numerik, sehingga jarak yang sesuai adalah jarak hamming. Apakah barang tersebut tergolong barang yang dimasukkan dalam pasaran atau tidak. Hasil dari penelitian ini adalah menghasilkan data laporan penjualan yang dapat melaporkan barang laku dan tidak laku di setiap cabang perusahaan.
Penerapan Model Problem Based Learning untuk Meningkatkan Minat dan Hasil Belajar Peserta Didik Kelas X Raden Ajeng Tri Wahyuning Tyas
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 1 No 2 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.508 KB) | DOI: 10.30587/postulat.v1i2.2109

Abstract

The problem of this research describes the application of the Problem Based Learning Model to increase the interest and learning outcomes of class X students of Network Computer Engineering SMK Mahfilud Duror II. This study aims to increase the interest and learning outcomes of students. This Classroom Action Research takes place in three cycles during the odd semester of the 2020/2021 school year. Data collection obtained from the test and observation methods. Observations made include aspects of interest, affective, cognitive and psychomotor aspects. The results showed an increase in the interest and learning outcomes of students through the application of the Problem Based Learning model. In the aspect of interest, it appears that students focus their attention on the lesson, follow all learning stages well, participate actively in group discussion activities, want to ask questions and try to answer teacher questions and dare to present the results of the discussion to the class. Acquisition of the percentage of interest has increased by 16.96% from cycle I to II, and by 4.31% from cycle II to III. While the percentage increase for learning outcomes amounted to 20.92% from cycle I to II and 13.47% from cycle II to III. The application of the Problem-based Learning model has succeeded in increasing students' interest in automatic learning which will also improve student learning outcomes.
Profil Kecepatan dan Temperatur Pada Aliran Konveksi Campuran Yang Melalui Bola Berpori Dengan Pengaruh Hidrodinamika Magnet Mohamad Tafrikan; Mohammad Ghani
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 1 No 2 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (439.842 KB) | DOI: 10.30587/postulat.v1i2.2091

Abstract

Pada makalah ini, aliran konveksi bebas dan aliran konveksi paksa berperan penting pada aliran konveksi campuran. Dalam hal ini, pengaruh gaya tekanan (pressure forces) dan gaya apung (buoyant forces) pada aliran konveksi bebas menjadi signifikan. Aliran konveksi campuran dapat digunakan pada teknologi reaksi reaktor dan pendingin elektronik. Dalam makalah ini, persamaan lapisan batas (boundary layer) dari aliran konveksi campuran fluida viskoelastik yang melewati permukaan sebuah bola berpori awalnya ditransformasikan kedalam bentuk non-dimensi, kemudian ditransformasikan kedalam bentuk persamaan lapisan batas non-similar yang diselesaikan secara numerik menggunakan metode beda hingga Keller-Box. Hasil numerik pada makalah ini adalah profil kecepatan (
Meningkatkan Keaktifan Peserta Didik Pada Kelas XI TBG 1 SMKN3 Jember Melalui Aplikasi Google Classroom Sevi S Addine
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 1 No 2 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (358.862 KB) | DOI: 10.30587/postulat.v1i2.2110

Abstract

This research is a Classroom Action Research (CAR) which aims to increase the learning activeness of students through the Google Classroom application. The subjects in this study were 33 students of class XI TBG 1 SMK Negeri 3 Jember. Data collection techniques in this research include observation, tests. Active learning through the Google Classroom application is carried out in 2 cycles consisting of the planning stage, the implementation stage, the observation stage and the reflection stage. The results of the study in cycle 1 showed that the class average value obtained was 66.3%, after being given action in cycle II using an innovative learning model, the learning outcomes increased with a class average score of 75% with 31 students who completed. . These results indicate that there is an increase in student learning outcomes using the google classroom application, so it can be concluded that student learning activity also increases.
Analisis Kesalahan Siswa dalam Menyelesaikan Soal Kemampuan Pemecahan Masalah Matematis Siswa Sekolah Menengah Atas Sufri Mashuri; Nasruddin Nasruddin; Sarida Sarida
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 1 No 2 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (242.983 KB) | DOI: 10.30587/postulat.v1i2.2092

Abstract

Penelitian ini bertujuan untuk mendeskripsikan jenis-jenis kesalahan siswa dan faktor penyebab terjadinya kesalahan yang dilakukan siswa SMA. Penyelesaian soal pemecahan masalah berdasarkan langkah penyelesaian Polya terdiri dari empat tahap, yatu memahami soal, menyusun rencana, melaksanakan rencana, dan memeriksa kembali jawaban yang telah diperoleh. Jenis kesalahan yang dimaksud dalam penelitian ini adalah jenis kesalahan berdasarkan langkah penyelesaian Polya, yaitu kesalahan memahami soal, kesalahan menyusun rencana, kesalahan melaksanakan rencana dan kesalahan memeriksa kembali jawaban yang telah yang diperoleh. Jenis penelitian ini adalah penelitian deskriptif kualitatif dengan jumlah sampel 40 orang siswa. Instrumen yang digunakan yaitu berupa tes uraian yang terdiri dari 5 soal. Hasil penelitian yang dilakukan menunjukan bahwa terdapat empat jenis kesalahan yang dilakukan siswa saat menyelesaikan soal 141 142 Sufri Mashuri 1 , Nasruddin1* , Sarida2 : Analisis Kesalahan Siswa dalam….. yang diberikan. Kesalahan tersebut adalah 1) memahami soal sebesar 31,70%; 2) kesalahan menyusun rencana sebesar 36,58%; 3) kesalahan melaksanakan rencana sebesar 35,60%; dan 4) kesalahan memeriksa kembali jawaban yang telah diperoleh sebesar 59,51%. Pada penelitian ini faktor penyebab kesalahan siswa dalam menyelesaikan soal pemecahan masalah matematis adalah faktor internal siswa
The Effectiveness Of Lesson Study On Differentiated Instruction Among Mathematics Head Panels In District Of Port Dickson Lau Sai Ping; Ilda Salwani binti Ameer Hamza; Ruzihan binti Abdullah; Murni binti Mohamad Yasin; Suzalin binti Zaini Sooria; Lee Bee Bee
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 1 No 2 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.478 KB) | DOI: 10.30587/postulat.v1i2.2124

Abstract

This study is to examine the effectiveness of lesson study on differentiated instruction among Mathematics headpanels in district of Port Dickson, Malaysia. Teachers who received substantial professional development canboost their students’ achievement. The effectiveness of professional development practice is being measuredby the heads of panel understanding about differentiated instruction and the application of differentiatedinstruction in the classroom. Teachers often struggle to deliver mathematics lesson effectively in classroom dueto different learning styles and students’ mixed abilities in the classroom. Some students learn at a slower paceand some in advance stage. The activities provided by teachers may work best for some students but will notwork for others. During lesson, teachers often assign tasks, which many students end up with disappointmentand confusion. Students become passive learners and teacher felt frustrated. Therefore, differentiatedinstructions make sense because it offers different paths to understand content, process and product. The aimof the present study was to obtain information from the school teachers in the implementation and planning ofdifferentiated instruction in teaching and learning. Moreover, the research team were interested in knowing thestrategy of differentiated instruction used in teaching and learning that support quality teaching. This studyinvolved 33 mathematics head panels from national primary schools in district of Port Dickson who volunteeredto participate in this study. In this programme, heads of panel will be able to share their experiences inconducting and implementing differentiated instructions in classroom among peers in the district. Structuredquestionnaires and interviews were used in this qualitative study to collect data. Results indicated that thelesson study carried out by the Port Dickson District Education Office is effective. Furthermore, the lessonstudy that were carried out by heads of panel in theirs school managed to boost self confidence among theseheads of panel. In fact, they showed willingness to share best practices to all mathematics teachers in the district205
Upaya Meningkatkan Kemampuan Menyelesaikan Masalah Matematika Melalui Guided Discovery Learning Menggunakan Microsoft Teams Berbantuan Excel Aulia Diraswati Septyanggraeni
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 1 No 2 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (405.091 KB) | DOI: 10.30587/postulat.v1i2.2088

Abstract

COVID-19 pandemic in Indonesia has an impact on learning process, which requires students to learn bynetwork/long distance. One of the platforms that teachers can used is Microsoft Teams. To be able to improvethe ability of students in solving problems in mathematics learning, teachers must make learning situationswith more problems solving, so students can more active in solving problems related to this material. Thelearning model that teachers can use is Guided Discovery Learning. Based on the findings in class, one of themathematics topics in SMK that are still difficult for students to understand is matrix. This is because matrixis considered an abstract material and is not related to everyday life. Students bored in studying matrixbecause this material consists of many numbers and requires high accuracy. So it takes learning media thatcan attract and help students in learning these materials. One of the learning media that can be applied isExcel Matrix. This research was conducted on 34 students of XI APAT 2 in SMK Negeri 1 Grati. Thisresearch is a classroom action research (PTK) which consists of 3 cycles. The results showed that in cycles 1and 2 it was still said to be not good, meaning that students were not yet able to understand problems, plansolutions, carry out solutions, and re-check solutions, while in cycle 3, the ability to solve mathematicalproblems of students could be said to be good according to the success criteria. which is determined as many as 23 students from the total (68%) in good or very good criteria in solving problems.
Pengembangan Alat Evaluasi Pembelajaran Matematika Berbasis Two Tier Multiple Choice Menggunakan Ispring Suite 9 Chusnul Amalia Rovita; Irwani Zawawi; Syaiful Huda
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 1 No 2 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (416.571 KB) | DOI: 10.30587/postulat.v1i2.2094

Abstract

In the era of the industrial revolution 4.0 and the pandemic era, innovation is needed in thedevelopment of technology-based evaluation tools. One of them is the ispring suite 9. Evaluation tool isimportant because it can help the process of evaluating educators to find out information on theachievement of results during the learning process. In addition to learning outcomes, evaluation can alsodetermine the ability of students to understand concepts. One of them is a two tier multiple choiceevaluation test. Two tier multiple choice is a form of two-tier multiple choice evaluation test. The purposeof this study is to develop a learning evaluation tool that can find out students' understanding of conceptsand can be used online. The research and development model used is 4D. The research instruments usedwere interview sheets, validation sheets, test instruments, and questionnaires. Data analysis techniquesused qualitative and quantitative. The result of this study is a two-tier multiple choice based mathematicsevaluation tool using ispring suite 9 which is seen from: (1) the percentage of validation results frommedia experts is 90.5% and material experts is 96.5%, both of which fall into the very feasible category.(2) the quality of the items seen from the validity obtained 8 valid items with a reliability of 0.815.Judging from the level of difficulty, the percentage is 10% difficult, 80% moderate and 10% easy, thedistinguishing power is obtained 5 questions are included in the good category, 3 questions are quitegood, 1 question is very good, and 1 question is bad, and the effectiveness of the distractor has 9distractors who selected > 5% of all students. (3) The percentage of students 'conceptual understandingafter evaluating two tier multiple choices is 50.5%, which is in the sufficient category, and the results ofthe students' responses are 82% which is included in the very interesting category.

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