Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika
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KETERAMPILAN BERPIKIR KREATIF SISWA DALAM MENYELESAIKAN SOAL OLIMPIADE MATEMATIKA BERDASARKAN LEVEL METAKOGNISI
The research aims to describe the level of creative thinking ability of students in solving mathematics olympiad problems based on students' metacognition levels by using the qualitative descriptive approach. The subjects of this study were the students at State of Junior High School (SMPN) 2 Jember involving the learning of Olympiad mathematics. The data collection was carried out based on the student's creative thinking ability test sheets, interviews, and observations. Test questions given to the students were mathematics olympiad questions. The analysis of the Miles and Huberman models were used for data analysis. The results exhibited that the level of creative thinking skills of the students in solving mathematics Olympiad questions were 29.41% (less creative), 41.18% (quite creative), 11.76% (creative) and 17.65% (very creative). On the other hand, the metacognitive level of SMPN 2 Jember students were 64.71% at level 2 (aware use), 23.53% at level 3 (strategic use) and 11.76% at level 4 (reflective use). In addition, the literatures indicate that there are several factors affectting the creative thinking skills and metacognition level, among them is an understanding of the information of the problem, compiling an appropriate strategies, skills of the chosen strategy, skills of answer elaboration, mastery of the Mathematics Olympiad material and a tendency to rely on the memorization or imitations based on previous or discussed solutions.
PENGEMBANGAN KURIKULUM MATEMATIKA UNTUK MENINGKATKAN KEMAMPUAN SISWA DALAM PENALARAN DAN PEMECAHAN MASALAH
The Trending topic in International Mathematics and Science Study (TIMSS) and the Program for International Student Assessment (PISA) have become a new standard for mathematics learning. One of the objectives of the study from TIMSS and PISA is to know the students' abilities in reasoning, identifying, and understanding, and using the basic mathematics needed in daily life. Or in other words, students must have mathematical literacy. The concept of mathematical literacy is intended the ability of individuals to formulate, use, and interpret mathematics in various contexts. This includes mathematical reasoning and using mathematical concepts, procedures, facts, and equipment to describe, explain, and predict phenomena or events (OECD, 2013). Indonesia has participated in TIMSS and PISA studies several times, from the TIMSS and PISA study results, it shows that students have not been able to develop optimally about their thinking abilities in mathematics schools and are still low in ability (1) to understand complex information, (2) theory , analysis and problem solving, (3) using tools, procedures and problem solving and (4) conducting investigations. In 2014, the National Council of Teachers of Mathematics (NCTM) stated that learning mathematics today is still too formal, lacks connection with the meaning, understanding, and application of mathematical concepts, and fails to give sufficient attention to the ability of reasoning and solving problem. These results indicate that there needs to be a change in curriculum orientation, which is not to burden students with content but prioritize the aspects of essential abilities needed by all citizens to participate in developing their country in the 21st century. Therefore it is necessary to develop a mathematics curriculum that enhances students' abilities in reasoning and problem solving in order to improve the quality of mathematics for students knowledge and skill in this global era.
STRATEGI PEMBELAJARAN MATEMATIKA MENYENANGKAN SISWA (MMS) BERBASIS METODE PERMAINAN MATHEMAGIC, TEKA-TEKI DAN CERITA MATEMATIS
Until now there are still many students who consider aboaut metematics as a school subject that is considered scary and boring. Because it contains many difficult and meticulous formulas. Though mathematics is a very important subject to be learned along with the progress of Science and Technology increasingly sophisticated in Era 4.0. Through Mathematics with all its applications, it creates many kinds of increasingly sophisticated contemporary technologies. Mathematics can be said to be the mother of all sciences. Therefore, mathematics is very important to be taught to students and must be able to be well received and enjoyable. Therefore it is necessary to look for a development of mathematical learning concepts that are in accordance with the characteristics of students namely fun mathematics learning strategies that can make students happy when studying, both at school and at private institutions. In this paper discusses focused for fun learning strategies based on mathematical game methods, Mathematical Puzzles, and Mathematical Stories.
KETERAMPILAN BERPIKIR TINGKAT TINGGI DALAM MEMECAHKAN DERET ARITMATIKA DUA DIMENSI BERDASARKAN TAKSONOMI BLOOM
Zainal Abidin, Mohammad Tohir
The research aims to describe the level of higher-order thinking skills ability of students in solving generalization patterns in two-dimensional arithmetic series based on revised Bloom's taxonomy. The research method used is a qualitative descriptive approach. The subjects were students of the Master Program of Mathematics Education at Jember University. The data was collected by giving open problem-solving tasks and documentation studies to students to develop patterns of one-dimensional arithmetic series. Then, students are given the task of solving the next problem to draw up a generalization pattern of two-dimensional arithmetic series. The data analysis technique used is qualitative descriptive data analysis. The results showed that the percentage of higher-order thinking skills aspects included analyze (C4) reached 88.89%, evaluate (C5) reached 83.33%, and create (C6) reached 66.67%. The results of this achievement are influenced by several factors, including accuracy in compiling numbers and expanding existing data, mastery of arithmetic series permutation concepts and their application, the tendency of graduate students to rely on memorization and imitations of existing examples.
KEMAMPUAN PENALARAN MATEMATIS SISWA DALAM MEMECAHKAN MASALAH ALJABAR BERDASARKAN GAYA KOGNITIF FIELD INDEPENDENT
This research aims to describe the level of mathematical reasoning ability of students with field-independent cognitive styles in solving algebra problems. The research method used is a qualitative descriptive approach, using qualitative data then described to produce a clear and detailed picture of students' mathematical reasoning with independent field cognitive style in solving algebra problems. The subjects of the research were Class VIII students’ of SMP Negeri 47 Surabaya. The main Instrument in this study is the researchers themselves. Instrument supporters in this research is divided into 2 kinds of Tests, namely the task of problem solving algebra, and guidelines for the interview. Data collection Techniques in the study carried out using two techniques, namely written tests and interviews. The process of data analysis in this study refers to qualitative data analysis process, namely the reduction of data, presenting the data, and draw conclusions. the results of this research indicate that (1) able to conduct an investigation of the problems faced thoroughly, (2) able to plan problem solving by connecting various related information, (3) able to use the strategy chosen correctly and correctly, and (4) able to re-examine, evaluate, and draw valid conclusions based on the solution of the problem obtained. In addition, the results of this study indicate that the level of mathematical reasoning ability of students is in the category sufficient to meet the mathematical reasoning indicators of field-independent cognitive style.
PENERAPAN MODEL ARIMA DALAM PERAMALAN ANAK USIA 5–14 Th YANG TERINFEKSI HIV DI INDONESIA
Wigid Hariadi, Sulantari Sulantari
Human Immunodeficiency Virus (HIV) is dangerous diseases for humans, and until now has not found a cure. Virus HIV is attacks the human immune system so that someone is susceptible to disease. This causes if someone is infected with HIV, then the person can experience an danger condition, it will even effect is death. In recent years, the number of children aged 5 – 14 years old that infected with HIV continues to increase. Therefore the author was moved to write about the application of the ARIMA model in forecasting the number of children aged 5 – 14 years old that infected with HIV in Indonesia by 2023. With the hope that the public or the govermment can find out the potential dangers of HIV disease, especially in children aged 5 – 14 years old. So that the public and govermment can jointly eradicate the spread of the HIV virus, especially in chidren. the result are obtained that the model that is suitable for use in forecasting is the ARIMA(0,1,2) models, with error value obtained is 0.057429. with the forecast value of the number of children aged 5 – 14 years old that infected with HIV in Indonesia from 2019 – 2023 in a row is : 570.82, 647.12, 734.14, 823.85, 944.83.
DESAIN MOZAIK PADA BINGKAI BELAH KETUPAT DENGAN MOTIF FRAKTAL DAN KONSTRUKSINYA PADA MATLAB
Mosaics are the artistic creations made from pieces of shape which are then arranged and affixed to a plane and designed using a tiling pattern with a basic pattern of geometric objects.. The progress of science and technology enables innovations especially after the invention of computers, one of which is fractals. Fractals are widely used in computer graphics to create amazing shapes. Mosaic designs can also be made with fractal concepts. The aims of this research are to get the procedure for mosaic design on circle and rhombus frames by hexagon and Pinwheel tiling with fractal motif. The research method covered the design of basic form for mosaic in the interior of circle and rhombus. Furthermore fill the basic form of mosaic wuth some fractal motif. The results of this research are the procedure to design some basic form of mosaic with the following steps. Firstly, divide the interior area of the circle and rhombus. Secondly, identify the symmetrical basic form. Thirdly, design the basic form of mosaic. Whereas procedure to fill the basic form of mosaic with fractal motif with the following steps. Firstly, choose the specify fractal motif. Secondly, fill the motif into each basic form. Thirdly, fill motif on the background. Then the final step is programmed the mosaics with Matlab 7 software.