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IMPLEMENTASI LEARNING TRAJECTORY KALKULUS BERBASIS REALISTIC MATHEMATICS EDUCATION UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR MATEMATIS TINGKAT TINGGI SISWA SMA KOTA PADANG Nonong Amalita, Arnellis, Suherman,
Menara Ilmu Vol 13, No 6 (2019): Vol. XIII No. 6 April 2019
Publisher : LPPM Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/mi.v13i6.1399

Development of Learning Trajectories (LT) is the development of learning pathways in calculus material that can improve high-order thinking skills (HOTS). Students have difficulty working on Calculus questions, because they do not understand their meaning in everyday life. The purpose of this study is to implement Learning Trajectories that have been produced in HOTS-based Calculus material with the Realistic Mathematics Education (RME) approach. As in the previous research, the stages of research included literature studies on LT, HOTS, and RME, and carried out the design effectiveness of the LT. The results of the LT design that are valid and practical are then measured and assessed to determine the effectiveness of the data obtained concluded that the learning trajectory of topic function calculus at the trial stage sees effectiveness as an effective category. Proven at the stage of implementation, motivation emerged positive attitudes such as active, happy, and enthusiastic students taking lessons. This is proven by the value of the test of high-level thinking ability of students found the average value of the experimental class test post is greater than the average value of the control class after being given treatment.

OLYMPIAD MATERIAL DEVELOPMENT FOR IMPROVING OF TEACHER PROFESSIONALISM MGMP SMP REGENCY OF AGAM WEST REGION Arnellis Arnellis; Elita Zusti Jamaan; Minora Longgom Nasution; Defri Ahmad
Pelita Eksakta Vol 1 No 1 (2018): Pelita Eksakta Vol. 1 No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol1-iss1/13

Based on observations and interviews with several mathematics teachers of Agam west region, the teacher's lack of knowledge about non-routine materials and problems in mathematical olympiad. Teachers rarely attend the olympic training so that teachers do not know much about non-routine questions, techniques to solve the problem. Based on these observations and the facts there is and so the importance of making the strengthening of mathematics material for teachers. The purpose of this article is to provide the strengthening of mathematics olympiad material so that teachers can improve their professional development, especially in making and solving the olympic problem in teachers of SMP MGMP west Agam District. Based on the evaluation it can be seen that generally the participants of community service in general have sufficiently understood the material in designing the problem and how to solve the existing problems in the Olympics in order to improve the quality of OSN participants from west Agam District. This success is shown by the teacher is able to design and make problems and solve problems related to mathematics olympiad.

Training of Making Creative Students’ Worksheet Based on Ethnomatematics by Using Edmodo App for Mathematics Teachers of MGMP of Junior High School in Payakumbuh City Elita Zusti Jamaan; Ali Asmar; Arnellis Arnellis; Nonong Amalita; Media Rosha
Pelita Eksakta Vol 4 No 2 (2021): Pelita Eksakta Vol. 4 No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol4-iss2/151

The purpose of this study is to determine the creativity of teachers in designing ethnomathematical-based student worksheets through LMS - Edmodo at MGMP SMP Payakumbuh. Ethnomathematics based student activity sheet (LKS) is based on the local culture of Payakumbuh. This Ethnomathematics-based LKS is expected to be the initial foundation for teacher creativity to design and develop Ethnomathematics-based LKS in accordance with Payakumbuh City. The method used in the service is in the form of online and offline workshops. The target audience for this community service is the mathematics teacher in the Payakumbuh Mathematics Junior High School Subject Teacher Consultation. This training stage begins online with a zoom meeting, giving questionnaires, carrying out tests, then followed by making Ethnomathematics-based LKS with the Edmodo platform. The results of the implementation show that the creativity of teachers in designing Ethnomathematics-based worksheets using the Edmodo platform is good, with the percentage of achievement of 79% and the creative achievement of teachers in participating in this activity is 78%.

Training of Mathematics Olympiad Contents by Using Edmodo App for Mathematics Teachers of MGMP of Junior High School in Bukittinggi City Arnellis Arnellis; Nonong Amalita; Elita Zusti Jamaan; Media Rosha; Saddam al Aziz
Pelita Eksakta Vol 4 No 2 (2021): Pelita Eksakta Vol. 4 No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol4-iss2/150

The purpose of this study is to improve the ability of mathematics olympiad coaches through the edmodo platform, and to find out the satisfaction of Bukittinggi junior high school mathematics teachers in fostering mathematics olympiads with the edmodo application. The target audience for the service is mathematics teachers in the Subject Teachers' Consultation (MGMP) at Bukittiggi Junior High School Mathematics. This training stage begins online with workshops from home, giving out questionnaires, administering tests, then followed by giving Edmodo platform skills, strengthening math olympiad training materials, and offline discussion sessions in the Edmodo class. The results of the training implementation showed that the mastery of Mathematics teachers in junior high schools in Bukittinggi City on the Olympic material through the tests given on the Edmodo platform was 76%, meaning that teachers who participated in this activity were able to conduct mathematics Olympiad coaching with the Edmodo application. While the results of the participant satisfaction questionnaire were 81.27% participants had good satisfaction with the training activities carried out.

IMPROVING MATHEMATICAL TEACHERS COMPETENCY 21TH THROUGH WORKSHOP DEVELOPMENT OF MATHEMATICAL OLYMPIC PROBLEMS BASED ON HIGH ORDER THINKING SKILLS IN SMP SOLOK SELATAN DISTRICT Arnellis Arnellis; Ali Asmar; Dony Permana; Elita Zusti Jamaan; Nonong Amalita
Pelita Eksakta Vol 2 No 2 (2019): Pelita Eksakta Vol. 2 No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol2-iss2/59

The aim of study to improve competency junior high school mathematics teachers in Solok Selatan district in compiling Olympiad questions mathematics and solving problems based on high order thinking skills (HOTS). The target audience for community service is mathematics teachers incorporated in the Subject Mathematics Teacher's Consultation (MGMP) Mathematics in Solok Selatan. The method used in the service includes the presentation of material by the team community service then carried out the pre test and post test, the design of the question HOTS, discussion and question and answer sessions at the math Olympiad. Conclusions of this research is: There is a positive increase in teacher competency after being given training in compiling math Olympiad questions that the posttest results are better than the results pretest in the training to improve the competency of mathematics teachers in compiling the questions Mathematical Olympiad based on high order thinking skills of SMPN in Solok Selatan District

IMPROVING TEACHER PROFESSIONALISM THROUGH IN HOUSE TRAINING MODEL TO HIGHER ORDER THINKING SKILLS ITEMS SMAN 10 REFFERENCE PADANG Arnellis Arnellis; Elita Zusti Jamaan; Nonong Amalita
Pelita Eksakta Vol 2 No 1 (2019): Pelita Eksakta Vol. 2 No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol2-iss1/65

This activity of workshop aims to provide an understanding of the way of developing Higher Order Thinking Skill (HOTS) items, provides direct experience in transforming common problems into HOT questions and in developing HOT items for teachers in Senior High School at SMAN 10 Reference Padang. The target is teachers of Senior High School at Padang district who are chosen by five teacher selected from few teachers impact in Senior High School at Padang The Workshop was held on Saturday in a row on September 22th dan 29 th 2018 at SMA 10 Reference Padang, using presentation, discussions, and question and answer about problems associated with development of HOT items. Based on the result, the attitude of activeness, and responsibility to do assignment in a row in the category good, very good. In general, this workshop activity success and on target, proved by the participants who were very enthusiastic in following the activities from beginning until at the end. Hopefully, the participants who attended the activity willing to share their knowledge with other teachers in their impact school

IMPLEMENTASI LEARNING TRAJECTORY KALKULUS BERBASIS REALISTIC MATHEMATICS EDUCATION UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR MATEMATIS TINGKAT TINGGI SISWA SMA KOTA PADANG Arnellis, Suherman, Nonong Amalita
Menara Ilmu Vol 13, No 6 (2019): Vol. XIII No. 6 April 2019
Publisher : LPPM Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/mi.v13i6.1399

Development of Learning Trajectories (LT) is the development of learning pathways in calculus material that can improve high-order thinking skills (HOTS). Students have difficulty working on Calculus questions, because they do not understand their meaning in everyday life. The purpose of this study is to implement Learning Trajectories that have been produced in HOTS-based Calculus material with the Realistic Mathematics Education (RME) approach. As in the previous research, the stages of research included literature studies on LT, HOTS, and RME, and carried out the design effectiveness of the LT. The results of the LT design that are valid and practical are then measured and assessed to determine the effectiveness of the data obtained concluded that the learning trajectory of topic function calculus at the trial stage sees effectiveness as an effective category. Proven at the stage of implementation, motivation emerged positive attitudes such as active, happy, and enthusiastic students taking lessons. This is proven by the value of the test of high-level thinking ability of students found the average value of the experimental class test post is greater than the average value of the control class after being given treatment.

Pengukuran Efisiensi Komoditi Industri Kerajinan Kabupaten Agam Menggunakan Metode Data Envelopment Analysis (DEA) Nurainun Pulungan; Arnellis Arnellis; Riry Sriningsih
Journal of Mathematics UNP Vol 4, No 1 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – Small and medium industries of Agam regency consist of five groups where one of them is craft industry that has a number of business units in Agam regency. To get more profit, measurement of efficiency needs to be done to improve productivity of craft industry. Method to measure level of efficiency is Data Envelopment Analysis (DEA) method. DEA method is linear programming model based on the measurement of efficiency a Decision-Making Unit (DMU) and uses a lot of inputs and outputs. The units will be measured those efficiency are commodities of craft industries with the production capacity of quantity unit. The measurement of efficiency commodities generates efficient and inefficiency DMU by using model of DEA. The level efficiency of inefficient DMU can be improved by utilizing the value of slack variables. After target calculation for improvements inefficient DMU and measurements of efficiency is again so that value of efficiency increases.Keywords – Efficiency, Data Envelopment Analysis, Inefficiency, Slack, Target.

Penerapan Algoritma Rivest Shamir Adleman (RSA) untuk File Citra Menggunakan Visual Basic Yessy Nazir; Arnellis Arnellis; Meira Parma Dewi
Journal of Mathematics UNP Vol 4, No 4 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – Most images have important information or a secret message. Secret message can provoke onset of opportunity the existence of threats to change the message. The messages of the image can be done by manipulating or piracy on the image. The results of image manipulation can change the meaning the image. Such as threats can be avoided by providing a safeguard against the image. Application of Rivest Shamir Adleman (RSA) Algorithm for Image Files is one way to secure an image of piracy as well as the manipulation of images. This article discussed the application of the RSA algorithm for image files. This method can hide the image using an early form of the public key and return it to the initial form with private key. The whole process is done by using Visual Basic 6.0. On the various experiments conducted the results of his work from the encryption produces 13 imagery similar to the image of the beginning of 15 sample images. Errors may caused by the selection of keywords which is less precise. Keywords – A Safety Of Image File, The RSA Algorithm, Encryption, Descryption

Model Matematika Kerusakan Sumber Daya Hutan di Indonesia Nur Suci; Arnellis Arnellis; Media Rosha
Journal of Mathematics UNP Vol 2, No 1 (2014): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – The Degradation of forestry resources is a serious problem is faced by Indonesian country. The growth of population people and augment industrialization in Indonesia gave a negative effect to forestry resources. Its happen if the utilization continuously without preservation. The purpose of this study is to see the dynamic degradation of forestry resources that can be done by modeling the influence population growth and augment industrialization to forestry resources in the form of a mathematical model. The form of mathematical models equations a non-linear differential equations system. Furthermore Mathematical model that we get be analysised and the result is interprestationed to answer the problem. According the analysis of mathematical model dynamics degradation of forestry resources in Indonesia is gotten by two types of fixed point; fixed point interference free ( ) and fixed point interference ( and ), and then we get obtained the stability of each fixed. Keywords – Degradation of Forestry, Industrialization, Mathematical Models, Population People Stability.

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