Anton Jaelani
Muhammadiyah University of Purwokerto

Published : 5 Documents
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Kemampuan Spasial: Apa dan Bagaimana Cara Meningkatkannya? Ahmad, Ahmad; Jaelani, Anton
JURNAL PENDIDIKAN NUSANTARA INDONESIA Vol 1, No 1 (2015): Jurnal Pendidikan Nusantara Indonesia
Publisher : Office of International Affairs (OIA)

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Abstract

Penelitian ini bertujuan untuk melihat peranan penting dalam kehidupan manusia khususnya yang berhubungan dengan STEM. Setiap orang harus dilatih kemampuan spasialnya agar menjadi modal dalam memecahkan masalah dalam kehidupannya. Aspek-aspek kemampuan spasial belum memiliki definisi yang jelas karena setiap peneliti mengkategorikannya dengan berbeda-beda dengan istilah yang berbeda-beda pula. Walaupun demikian, penulis menyimpulkan bahwa ada 4 kelompok kemampuan spasial yang dirangkum dari berbagai macam pendapat tentang pengkategorian kemampuan spasial yaitu Spatial Visualization, Spatial Orientation, Dynamic Spatial Ability, dan Formal Spatial Ability. Dari berbagai cara yang dilakukan oleh para peneliti dalam melakukan dukungan kepada sesorang untuk memperbaiki kemampuan spasialnya, dapat dirangkum bahwa kemampuan spasial dapat ditingkatkan melalui pelatihan penyelesaian masalah kemampuan spasial, meakukan aktivitas yang melibatkan obyek-obyek geometri, dan melakukan pembelajaran geometri yang di dalamnya melibatkan aktivitas nyata, aktivitas menggambar dan aktivitas berbantuan komputer yaitu software geometri yang dinamis. Untuk dapat mendukung peningkatan kemampuan spasial siswa maka pembelajaran yang diberikan haruslah mendukung siswa untuk melakukan aktivitas nyata yang melibatkan obyek-obyek geometri yang bervariasi dan menggambarnya. Selain itu, dukungan juga dapat diberikan melalui pembelajaran yang menggunakan bantuan software geometri yang dinamis. Keterlibatan ketiga unsur ini harus dicari dalam pembelajaran yang akan dipilih atau didesain. Hal ini sebagai salah satu cara melakukan pendekatan bertahap mulai dari kongkrit, representasional, sampai dengan abstrak.Kata Kunci— STEM, Kemampuan Spasial, Peningkatan, Software, Geometry.
Developing a Simulation of Transformation Geometry by Using Flash Ahmad, Ahmad; Jaelani, Anton
EDUCARE Vol 8, No 2 (2016)
Publisher : EDUCARE

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ABSTRACT: The development of science and technology stimulates the rise of effort to make use of all facilities in all fields. One of the results is increasing number of computer use in Indonesia. This condition encourages educational practitioners to develop several models of learning media by using computers with purposes of tutorial, exercises, simulations, and games. Meanwhile, learning process which applies some media of simulation provides some benefits as they are realistic, secure, and simple. This simulation will lead students into a visualization of real life condition. Without media, students will usually imagine what they learn. It later exposes them with some problems that influence their abstractions. If a lecturer only explains about Transformation Geometry without using simulation, there is a big opportunity that students will yield misconception or they will only remember it with little understanding. This research aims to develop a valid and practical the Transformation Geometry simulation. The method in this research is a design research from a technology perspective that uses a preliminary stage and evaluation stage. The result presented the simulation of the definition of reflection, rotation, rotation half-round, and translations that have been made are in accordance with the curriculum and the existing concepts. Try-out result shows that the simulation can help students find their own concepts of reflection, rotation, rotation half-round, and translation; and sets up students to communicate. The conclusion of this research is that the result of simulation design that has been created has to be valid and practical.KEY WORDS: Development of Science and Technology; Computer Use; Transformation Geometry; Learning Process; Understanding of Concepts.  About the Authors: Ahmad and Anton Jaelani are the Lecturers at the Department of Mathematics Education, Faculty of Education and Teacher Training UMP (Muhammadiyah University of Purwokerto), Jalan Raya Dukuhwaluh, Purwokerto, Central Java, Indonesia. Corresponding authors is: ahmadump@yahoo.co.idHow to cite this article? Ahmad & Anton Jaelani. (2016). “Developing a Simulation of Transformation Geometry by Using Flash” in EDUCARE: International Journal for Educational Studies, Vol.8(2) February, pp.129-138. Bandung, Indonesia: Minda Masagi Press and UMP Purwokerto, ISSN 1979-7877. Chronicle of the article: Accepted (January 17, 2016); Revised (February 1, 2016); and Published (February 28, 2016).
Students' Strategies of Measuring Time Using Traditional Gasing Game in Third Grade of Primary School Jaelani, Anton; Putri, Ratu Ilma Indra; Hartono, Yusuf
Journal on Mathematics Education Vol 4, No 1 (2013)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.4.1.560.29-40

Abstract

Understanding of measuring time has difficulty for children because it is intangible. Standar units often use directly by teacher for learning time measurement. Many researches involved game in designing learning material to facilitate fun and meaningful learning for children. For this reason, learning of time measurement that connect with children's daily experience was designed. The context of this research was traditional gasing game. The study is situated in implementation of Indonesian version of Realistic Mathematics Education, labeled as PMRI. This research aimed acquire learning trajectory of time measurement using traditional gasing game for the third grader of primary school by describing students' progress in learning. Design research methodology comprising preparing for the experiment, teaching experiment, and retrospective analysis was used. The research was conducted in SD (Sekolah Dasar) Pusri (Pupuk Sriwijaya) Palembang as one of PMRI (Pendidikan Matematika Realistik Indonesia) school. The result of the teaching experiment showed that learning design could foster students to experience reinvention of time measurement historically. It stimulated students to emerge their sense of time, measure time using non standar unit, understand the concept of standard unit, and measure time using standar unit. Students' strategies that were emerged showed students' progress through situation and problems that were provided by traditional gasing game.
KESALAHAN JAWABAN TES TRIGONOMETRI MAHASISWA PENDIDIKAN MATEMATIKA SEMESTER PERTAMA Jaelani, Anton
ALPHAMATH Vol 3, No 2 (2017)
Publisher : ALPHAMATH

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Abstract

Trigonometry was one of the basic topic used for learning advance mathematics. Lecturer borteacher and students often faced difficulties when they learned trigonometri and answeredtrigonometric exercises, moreover when they solved trigonometric problem. This articledescribed the undergraduate students unnecessary mistakes of trigonometric exercises. Theconjectures of mistakes was created based on students mistakes in learning trigonometry. Datacollection conducted from students test result. Data reduction, data display, and conclusiondrawing was used to analyze the data. Test result choosed analyzed based on the conjecturescreated. Research found nine students unnecessary mistakes of the trigonometric exerciseanswer agreed with the conjectures. These were student uncared place of quadrant, studentsgot accidently exchange formula, students created table to help them drawing trigonometricfunction graph, students drew trigonometric function graph in a straight line manner, studentsdid not add period in solution of trigonometric equation, students did not operate to all of thepart of equation, students applied distribution in a wrong place, students applied uncorrectformula, students did not connect between trigonometry other concept in mathematics.Keyword: Trigonometry, Unnecessary Mistake, Students Answer.
Peningkatan Kemampuan Pemecahan Masalah Matematis Mahasiswa melalui Metode Snow Ball Throwing pada Mata Kuliah Teori Graf Akhsani, Lukmanul; Jaelani, Anton
JURNAL PENDIDIKAN MATEMATIKA Vol 2, No 1: Mei-Oktober 2018
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/kontinu.2.1.58-71

Abstract

Pemecahan masalah sebagai pendekatan dalam pembelajaran, digunakan untuk menemukan dan memahami materi atau konsep matematika. Sedangkan sebagai tujuan dalam pembelajaran, merupakan kemampuan yang harus dicapai mahasiswa. penelitian ini bertujuan untuk meningkatkan kemampuan pemecahan masalah mahasiswa melalui metode Snow Ball Throwing semester VII Program Studi Pendidikan Matematika. Rata-Rata skor awal tes kemampuan pemecahan masalah yaitu 1,96, Rata-rata skor tes kemampuan pemecahan masalah pada siklus pertama yaitu 2,1. Skor tersebut masuk pada kategori cukup baik. Rata-rata skor tes kemampuan pemecahan masalah pada siklus kedua yaitu 2,73. Skor tersebut masuk pada kategori cukup baik. Kesimpulan dari penelitian ini adalah kemampuan pemecahan masalah mahasiswa melalui Metode Snowball Throwing pada mata kuliah teori graf meningkat.