Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika

Journal Information
ISSN / EISSN : 27156095 / 27156109
Current Publisher: LP2M Universitas Ibrahimy (10.35316)
Total articles ≅ 14
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Muzayyanatun Munawwarah, Nurul Laili, Mohammad Tohir
Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika, Volume 2, pp 37-58; doi:10.35316/alifmatika.2020.v2i1.37-58

Abstract:
Descriptive analysis methode of research describes about increasing subject in the level of critical thinking skills of students in solving mathematics based on 21st-century skills. The subjects research were 28 students of Mathematics Education Study Program at Ibrahimy University of Situbondo. Data collection is done by providing pre-test and study documentation to students. The test is given to collect data related to students' critical thinking skills. Then learning is done based on 21st-century skills. Furthermore, students are given a post-test solving mathematical problem. Data were collected through observations, test results and interview data tested for their validity by triangulation. The data analysis technique used is qualitative descriptive data analysis. The results of this study indicate that: (1) the results of the achievement of indicators of critical thinking of students based on critical thinking stages formulated by Facione, overall the subject of an increase of 7.53%; (2) there was the same highest increase in the achievement of the indicator thinking Facione stage, namely at the Analyze stage (A) for high, medium, and low category subjects respectively, 77.78%, 80%, and 44.44%. However, there are still two stages of critical thinking that still need attention for further research, namely at the List (L) and Self-Correct (S) stages classified as still needing special attention in implementing 21st-century skills in learning activities; (3) the level of critical thinking skills of students based on the critical thinking stages formulated by Facione was in the category of "not critical" for the pre-test results and was in the category of "sufficient critical" for the post-test results.
Saiful Saiful, Hobri Hobri, Mohammad Tohir
Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika, Volume 2, pp 73-91; doi:10.35316/alifmatika.2020.v2i1.73-91

Abstract:
This research aims to analyze students' metacognition in learning mathematical problem solving based on Lesson Study for Learning Community (LSLC) if reviewed from reflective and impulsive cognitive styles. The research method employed in this research is descriptive qualitative. The data collection is done by observation, tests, interviews, think aloud and documentation. The test is given to 30 students when an open class in class VII of MTs Miftahul Hidayah. Based on the test results, students are grouped into two in reviewed from reflective and impulsive cognitive styles. Three students were selected from each group to be interviewed and deepened through a think-aloud technique. The form of data analysis is classified into induction and reduction theory. The results of this research indicates that 18 students (60%) have reflective cognitive styles and 12 students (40%) have impulsive cognitive styles. Reflective cognitive style students, the scores obtained are better by using a relatively long time and can do aspects of metacognition well. While the scores obtained by impulsive cognitive style students are lower with the use of the time that is relatively faster and unable to perform aspects of metacognition well.
Nur Fadilatul Ilmiyah, Annisa’ Annisa’, Azizatul Fitriyah, Berlyana Sukma Vebyanti
Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika, Volume 2, pp 92-104; doi:10.35316/alifmatika.2020.v2i1.92-104

Abstract:
Mathematical contextualization is interpreted as identifying the existence of mathematics developed by different cultural groups. The existence of ethnomathematics in education offers a learning approach that connects mathematics with the local cultural wisdom of the community. The main focus of this research is to identify ethnomathematics in woven handicrafts in Plaosan Village, Kediri Regency. This research is qualitative descriptive research. Data were collected using observation, documentation, interview, and literature study techniques. The results showed that there were ethnomathematics in woven handicrafts in Plaosan Village. The mathematical elements that can be found in the woven motifs are the concept of the plane, the concept of lines and the relationships between lines, the concept of angles, and the concept of transformational geometry. The fundamental mathematics activities that can be found in the weaving activities are counting, measuring, designing, locating, playing, and explaining.
Ferry Kurnia Putra, Hobri Hobri, Susi Setiawani
Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika, Volume 2, pp 59-72; doi:10.35316/alifmatika.2020.v2i1.59-72

Abstract:
This research aims to describe about the profile of climber students’ self efficacy to the problem solving skills of high level mathematics problems. It is including form of descriptive research with qualitative approach. The research subjects are 13 climber students in class XI MIPA 8 of SMA Negeri 1 Jember, were tested by Adversity Response Profile (ARP) questionnaire. The method of data collection use a test of problem solving skills of high level mathematics problems, adversity response profile (ARP) questionnaire and interviews. The results of this research showed that the climber students are tend to have high self efficacy and able to by every Polya’s stages.
Abdul Hakim
Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika, Volume 2, pp 14-36; doi:10.35316/alifmatika.2020.v2i1.14-36

Abstract:
Based on the data and experience of researchers in classes that are able to show interest in literacy and critical thinking skills is still low. Therefore, researchers applied the Batu Cermat method. Batu Cermat comes from “baca-tulis-uji-cerpen-matematika,” (read-write-test-short story mathematics). Batu Cermat aims to civilize literacy and instill communication skills, collaborate, think critically, and creatively with students. This article is in the form of qualitative research, the best practice of researchers applying Batu Cermat to students of SMPN 1 Dolopo starting the 2015/216 school year to 2017/2018. The information needed is obtained by the documentation study technique, in the form of using a list of values ​​supported by a questionnaire. Through Batu Cermat, students are given the opportunity to think creatively by making short stories in mathematics. How, with m ema be incorporated math problems or related information in a short story, and be able to solve the problem themselves. The validity is tested its validity with each other carefully and resolved. As a result, students are able to make short, good mathematical nuances of short story work according to the rules of short story writing. Proven Batu Cermat can be a catalyst in civilizing literacy and developing the ability to think creatively students. The Batu Cermat is more optimal, if the reading movement becomes more entrenched and requires patience and cooperation across subjects. Up to now, the students' careful work has published four ISBN short story mathematics books.
Novita Nurul Aini, Mohammad Mukhlis
Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika, Volume 2, pp 105-128; doi:10.35316/alifmatika.2020.v2i1.105-128

Abstract:
One of the studen learning goals mathematics is mathematical reasoning for outcomes training student to solve the problems. One of the problems faced by students is word questions. There are several students responses in dealing with word question which is known as Adversity Quotient. This research aims to describe the students' problem solving skills in system of three-variable linear equations subject based on Polya's theory in terms of Adversity Quotient. This is a qualitative descriptive research with three subjects of students class X IPA 1 SMAN Arjasa Jember, there are one climber student, one camper student and one quitter student. These subjects took purposive sampling with consideration according to the results of questionnaire scores that meet each of the criteria of Adversity Quotient. Data collection techniques used were questionnaires, tests, interviews and observations. The validity test used is technical triangulation. Data analyzed through data condensation, data presentation and conclusion drawing. The results showed that student with the type of climber was able to meet all the indicators of problem solving in the problem of the word questions which included indicators of understanding the problem, planning the solution, carrying out the plan of solving and re-checking. Camper type student met all indicators of problem solving except at the re-checking stage. Quitter type student in completing word questions met the stage of understanding the problem and planning the solution, while the stage of carrying out the plan and re-checking is not fulfilled by the quitter student.
Finlantya Elsa Hutami, Dinawati Trapsilasiwi, Randi Pratama Murtikusuma
Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika, Volume 2, pp 1-13; doi:10.35316/alifmatika.2020.v2i1.1-13

Abstract:
This research aims to analyze student’s error types in solving linear programming problems based on Newman’s error analysis viewed from Adversity Quotient (AQ). This research approach is qualitative descriptive. Subjects in this research are 6 students in class X TKR 3 of SMKN 2 Jember. There are 2 climber students, 2 camper students, and 2 quitter students. Instruments that were used in this research to collect the data are ARP questionnaire, linear programming problem, interview guide, and validation sheets. Based on the result of this research, the climber students are able to do comprehension error, process skill error, and encoding error. The camper students are able to do comprehension error, transformation error, process skill error, and encoding error. The quitter students are able to do reading error, comprehension error, transformation error, process skill error, and encoding error.
Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika; doi:10.35316/alifmatika

Tanti Erviana
Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika, Volume 1, pp 61-73; doi:10.35316/alifmatika.2019.v1i1.61-73

Abstract:
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.
Wigid Hariadi, Sulantari Sulantari
Alifmatika: Jurnal Pendidikan dan Pembelajaran Matematika, Volume 1, pp 74-82; doi:10.35316/alifmatika.2019.v1i1.74-82

Abstract:
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.
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