Jurnal Pendidikan Matematika Unila
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VALIDITAS PERANGKAT PEMBELAJARAN MATEMATIKA DENGAN METODE PENEMUAN TERBIMBING PADA MATERI LINGKARAN KELAS VIII SMP
Full text linkThe purpose of this research is to produce a mathematics learning tool in the form of the lesson plan and student's worksheet using the guided discovery method on the circle material of class VIII junior high school which has been tested valid. This development refers to the Research and Development (R&D) model which includes 10 stages, namely potential and problems, data collection, product design, design validation, design revisions, product trials, design revisions, usage trials, product revisions, and mass production. Modified according to the needs of this research into 6 stages, namely potential and problems, data collection, product design, design validation, design revision, and final product. The data analysis technique used is the descriptive analysis technique. The validation sheet was used as a data collection instrument in this research. The validation sheet is filled out by 3 validators consisting of 2 lecturers of the mathematics education study program FKIP UIR and 1 mathematics teacher. Based on the results of the lesson plan validation, a percentage of 85.6% was obtained with very valid criteria, while the students’ worksheet validation results were 82.6% with fairly valid criteria. This research concludes that mathematics learning tools have been obtained using the guided discovery method in class VII junior high school on the circle material which has been tested valid. Keywords: circle; guided discovery; learning tools; mathematics; validity DOI: http://dx.doi.org/10.23960/mtk/v9i4.pp501-51
ANALISIS MISKONSEPSI SISWA MENGGUNAKAN THREE TIER DIAGNOSTIC TEST BERBASIS OPEN ENDED QUESTION
Full text linkAbstractThis study aims to: (1) find out the misconceptions experienced by students in the material of similarity and congruence by using three-tier diagnostic tests based on open-ended questions. (2) find out the large percentage of students' misconceptions on the similarity and congruence material using a three-tier diagnostic test based on open-ended questions. The research method used was descriptive qualitative. The data collection instruments used were clinical interviews and three-tier diagnostic tests based on open-ended questions. This study was conducted in the SMP Negeri 2 Palimanan. The research subjects were selected using purposive sampling techniques so that 33 students were selected from 330 students. The results of the analysis of the three-tier diagnostic test based on open-ended questions showed that (1) the misconceptions that occurred in the material of similarity and congruence of 2D shapes included pure misconceptions, false positives, and false negatives. (2) the percentage of misconceptions experienced in the material of similarity and congruence 2D shapes as a whole was 50.2% with a large percentage of pure misconceptions 32.4%, false-positive 15.6%, and false-negative 2.2%.Keywords: misconception; three tier diagnostic test; pure misconception; false positive, false negative AbstrakPenelitian ini bertujuan untuk : (1) mengetahui miskonsepsi yang dialami oleh siswa pada materi kesebangunan dan kekongruenan berdasarkan hasil analisis three tier diagnostic test berbasis open ended question. (2) mengetahui besar persentase miskonsepsi yang dialami oleh siswa pada materi kesebangunan dan kekongruenan menggunakan three tier diagnostic test berbasis open ended question. Metode penelitian yang digunakan adalah deskriptif kualitatif. Instrumen pengumpulan data yang digunakan yaitu wawancara klinikal dan three tier diagnostic test berbasis open ended question berbentuk esai sebanyak 7 butir soal. Penelitian ini dilakukan di SMP Negeri 2 Palimanan. Subjek penelitian dipilih menggunakan teknik purposive sampling sehingga dipilih 33 siswa dari 330 siswa. Hasil penelitian menunjukkan bahwa (1) berdasarkan hasil analisis three tier diagnostic test berbasis open ended question miskonsepsi yang terjadi pada materi kesebangunan dan kekongruenan bangun datar meliputi miskonsepsi murni, false positive, dan false negative. (2) besar persentase miskonsepsi yang dialami oleh siswa secara keseluruhan pada materi kesebangunan dan kekongruenan bangun datar adalah 50,2% dengan besar persentase miskonsepsi murni 32,4%, false positive 15,6%, dan false negative 2,2%.Kata Kunci: miskonsepsi; three tier diagnostic test; miskonsepsi murni; false positive; false negative DOI: http://dx.doi.org/10.23960/mtk/v9i3.pp276-29
PENINGKATAN PEMAHAMAN KONSEP SISWA DENGAN PENDEKATAN METAPHORICAL THINKING PADA PEMBELAJARAN DARING MATERI ARITMATIKA SOSIAL
No full textThis research is motivated by the low understanding of students' mathematical concepts, especially on social arithmetic material. The purpose of this study was to describe the stages of the metaphorical thinking approach method and the magnitude of the increase in students' conceptual understanding of social arithmetic material. The data collection method used in this classroom action research (CAR) includes written tests and observations in each cycle. The research instruments used were lesson plans, worksheets, question sheets, and observation sheets for the implementation of learning in each cycle. The research subjects were students of class VII in one of the madrasah tsanawiyah in Lamongan as many as 23 students. Based on the results of data analysis, the classical student activity assessment increased 23.85% from 66.25% to 90.1%. Student test results also increased by 34.8%, namely from cycle I it reached 47.8% and cycle II reached 82.6%, with the results achieved can be declared complete, and it can be concluded that in online mathematics learning there is an increase in understanding concept in class VII madrasah tsanawiyah in Lamongan by using the application of Metaphorical Thinking. Keywords: concept understanding; metaphorical thinking; online learningDOI: http://dx.doi.org/10.23960/mtk/v9i4.pp386-39
ANALISIS KESULITAN BELAJAR MATEMATIKA SISWA SMP DALAM PEMBELAJARAN DARING PADA MASA PANDEMI COVID-19
Full text linkAbstractOne of the many sectors affected by the Covid-19 pandemic is education. This resulted in a change in the learning system from face-to-face in class to online learning from home. Since online learning took place, students have experienced many difficulties in implementing it, especially in mathematics. Therefore, this research was conducted by the author to know the difficulties students encounter during online learning during a pandemic like this. The method applied in this research is the descriptive qualitative method. Observations involved SMP / MTs students with data collection techniques through questionnaires distributed online via WhatsApp and research subjects were 30 respondents. From the data that has been received, the results obtained are that most students like the Google Classroom application as an online-based learning medium, obstacles that are often experienced by students include limited quota, unsupportive signals, many tasks, and not understanding the material presented by the teacher. In addition, mathematics is considered difficult due to several factors: (1) using a lot of formulas, (2) not understanding the concept of the material, and (3) the limited space for interaction between students and teachers.Keywords: difficulty learning mathematics; online learning; the covid-19 pandemic AbstrakSatu di antara banyak sektor yang terdampak pandemi covid-19 ialah pendidikan. Ini mengakibatkan perubahan sistem pembelajaran yang mulanya tatap muka secara langsung di kelas menjadi pembelajaran daring dari rumah. Sejak pembelajaran daring berlangsung, banyak kesulitan dialami siswa dalam pelaksanaannya, terkhusus pelajaran matematika. Maka dari itu, penelitian ini dilakukan penulis dengan maksud untuk mengetahui kesulitan-kesulitan yang didapati siswa saat pembelajaran daring di masa pandemi seperti ini. Metode yang diterapkan dalam penelitian adalah metode kualitatif deskriptif. Observasi melibatkan siswa SMP/MTs dengan teknik pengumpulan datanya melalui angket yang disebarkan secara online via WhatsApp dan subjek penelitian sebanyak 30 responden. Dari data yang telah diterima, diperoleh hasil bahwasanya kebanyakan siswa menyukai aplikasi Google Classroom sebagai media pembelajaran berbasis daring, hambatan yang sering dialami peserta didik di antaranya kuota terbatas, sinyal tidak mendukung, banyak tugas, serta tidak paham materi yang disampaikan guru. Selain itu, matematika dianggap sulit karena beberapa faktor: (1) banyak menggunakan rumus, (2) tidak paham konsep materi, dan (3) ruang interaksi antara siswa dengan guru yang terbatas.Kata Kunci: kesulitan belajar matematika; pandemi covid-19; pembelajaran daring DOI: http://dx.doi.org/10.23960/mtk/v9i3.pp307-31
MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS MAHASISWA PADA MATA KULIAH ANALISIS KOMPLEKS DENGAN DISCOVERY LEARNING DIPADUKAN DENGAN COOPERATIVE LEARNING TIPE NUMBERED HEAD TOGETHER
No full textThe purpose of this study is to improve critical thinking of students' skills in Complex Analysis lectures through discovery learning combined with numbered head together type Cooperative Learning. This research uses a class action research approach. Each cycle consists of several stages, namely: planning, action, observation, and reflection. To obtain research data two types of research instruments were used. The research instrument in question is the observation sheet of the implementation of learning and observation guidelines as well as test questions on critical thinking skills at the end of the cycle. The results of this study indicate that The average score of critical thinking of students skills was 96.40 in the first cycle increased to 126.40 in the second cycle, but the average percentage of critical thinking of students skills increased from cycle I to cycle II, namely 62.25% in cycle I increased to 81.70% in cycle II.Keywords: critical thinking; discovery learning; numbered head together DOI: http://dx.doi.org/10.23960/mtk/v8i2.pp299-312 Alternative Link -> PD
RESPON SISWA SEKOLAH MENENGAH TERHADAP PEMBELAJARAN MATEMATIKA DI ERA COVID-19
Full text linkThis study provided an overview of the response of secondary school students regarding the learning from home policies in mathematics learning in four Provinces, Aceh, North Sumatra, Riau, and Jambi. Participants in this quantitative descriptive study were secondary school or equivalent students, amounting to 490 students who were selected based on convenience sampling. Data shows that only 30 percent of students who feel happy to do online mathematics learning, and as many as 62 percent of students experience obstacles on it. They are categorized into four things: Mathematical material that is very difficult to understand, there is no interaction between teacher and student as well as students and students, electricity and internet problems, and not focused on learning. While students who feel happy have a reason for the flexibility of time and place, as well as supporting social distancing recommended by the government. Then it is necessary to evaluate online mathematics learning because students' responses affect learning success.Keyword: learning mathematics from home; social distancing; student perception DOI: http://dx.doi.org/10.23960/mtk/v8i2.pp193-20
The Influence of Resource Based Learning to Students Mathematical Conceptual Understanding
No full textThis research aimed to examine the influence of resource based learning towards student’s mathematical conceptual understanding. The population of this research was all the eighth grade students of SMP Negeri 1 Natar Lampung Selatan in the odd semester of the 2019/2020 academic year as many as 362 student’s that were distributed into eleven classes. The samples of this research were students of class VIII-A consist of 32 students and VIII-B consist of 32 students which were chosen by purposive sampling technique. This research used the pretest-posstest control group design. The research data were obtained through test of mathematical conceptual understanding. The data analysis of this research used Mann-Whitney U-test. Research show that the influence of mathematical conceptual understanding of student with resource based learning was higher than the influence of mathematical conceptual understanding of student with conventional learning. Based on the result and working through of result, the conclusion of this research is resource based learning no affects the student’s mathematical conceptual understanding. enhancement
KOMPETENSI NUMERASI SISWA SMK DITINJAU DARI GENDER DAN BERBAGAI KESULITANNYA
No full textNumeration is a basic ability part of the minimum competency assessment (MCA) that is important in understanding current global information patterns. The main purpose of this study was to determine differences in the numerical competence of students in terms of gender and various difficulties. The case study research was carried out on 40 boy students and 51 girl students of Al Munawwariyyah Vocational School, Kab. Malang. The t test results showed that there were no differences in the numerical ability of boy and girl students. Some difficulties experienced by students in solving numerical problems include comparing two data from diagrams 54.9%, analyzing table data 61.6%, evaluating values on questions based on the table reference 63.8%, and comparing two graphs with the same function 39.6%. It is recommended to do more mature debriefing for students to prepare for the actual numeracy test in the coming year.Keyword: gender; MCA; numeration DOI: http://dx.doi.org/10.23960/mtk/v8i2.pp.227-237 Alternative Link -> PD
ANALISIS INTENSITAS BELAJAR TERHADAP KETUNTASAN BELAJAR MATEMATIKA PESERTA DIDIK KELAS VIII
Full text linkThe aim of the research is to describe how the learning intensity of students to the completeness of mathematics learning outcomes. The research used qualitative research with descriptive methods. The data was taken by Google form, from 22nd to 23rd June 2020. The samples used the purposive sampling technique by selected eight participants students in SMP Negeri 1 Bengkulu city. The technique analysis data are used to reduce, display data, and verification. This research found that there is an influence of the learning intensity toward the mathematical outcomes. The average of learning in the school is 5 hours/week, the average of learning at home is 3 hours/week, the average of learning in a group is 2 hours/week, and the average of learning additional is 1.5 hours/week. Therefore, the average of all of the learning is 1.58 hours/week. The students’ outcomes have fulfilled the criteria minimum of the learning completeness (KKM). It was proved by students’ score in their report that has more than 78.Keywords: KKM; the completeness of learning; the intensity of learning DOI: http://dx.doi.org/10.23960/mtk/v8i2.pp325-33
PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS SISWA
Full text linkThis study aims to determine the effect of a problem-based learning model on student’s mathematical communication skills. The population was all students of grade VIII SMP Negeri 19 Bandarlampung odd semester in the academic year 2019/2020 that were distributed into ten classes. The research samples were all students of grade VIII E and VIII F which were selected through a purposive sampling technique. The posttest only controls group design was used as the design of this research. The research data analysis using U-test at a significant level = 0.05, students’ communication skills with the problem-based learning model are significantly higher than students’ communication skills with conventional learning. Conclusions are obtained that the problem-based learning model was an effect on student’s mathematical communication skills.Keywords: mathematical communication skills; problem-based learning; students DOI: http://dx.doi.org/10.23960/mtk/v8i2.pp182-19