Identifikasi Konsep Matematika Melalui Aktivitas Etnomatematika Petani Sawah

The purpose of this study was to determine the mathematical concepts through ethnomatematics activities of rice farmers in the community in Blang Jrun village, North Aceh. This research is a type of qualitative research with an ethnographic approach. The subjects of this study were 8 people who work as farmers in Blang Jruen Village, North Aceh Regency. Data collection methods used were interviews, documentation and observation. The results showed that community farmers in Blang Jruen Village indirectly used ethnomatematics activities in rice farming. Ethnomatematic activities used include counting, counting and measuring activities. The most common activity in rice farmers is counting activity. In counting activities many mathematical concepts emerge by the farmers. Like addition; reduction; multiplication; division; worth comparison; and the comparison turned value. Whereas the spelling activity only appears in the mention of the vast rice fields. Measuring activity arises when estimating the distance between one crop and another and estimating the size of rice fields and yields. Conclusion, there are a lot of ethnomatematics activities in farming activities carried out by the Blang Jruen Village community in North Aceh Regency. Ethnomatematics activities include counting, counting and measuring activities. These concepts can be used as inspiration and contextual learning reference material. Keywords: Ethnomatematics Activities, Mathematical Concepts, Rice Farmers

Pengembangan Lembar Kerja Siswa (LKS) Menggunakan Ikon Kota Lubuklinggau

This study aims to develop Student Worksheets (LKS) using the icon of the City of Lubuklinggau (Great Mosque of the As-Salam Taman Kurma) on valid and practical class X trigonometry material. The research method used is the research method of development, Research and Depelopment (R&D) which has been modified into 3-D which in this study uses 3 stages, namely the stage of definition (Define), design, (Design) and development (Develop). Worksheets developed in the level of validity were seen from the expert questionnaire, while practicality was measured from the practicality questionnaire for students. The results of the study, from the analysis of the assessment of four experts namely linguists, material experts, content experts, and media experts showed that the worksheet met valid criteria with an average score of 3.18. While the results of the analysis of the LKS assessment on field trials of students meet practical criteria with an average score of 3.15. In conclusion, the worksheets are designed using the icon of the city of Lubuklinggau with valid and practical trigonometry material Keyword: City Icons, LKS Development

Pengembangan Lembar Kerja Siswa (LKS) Etnomatematika Berbasis Penemuan Terbimbing pada Materi Bangun Ruang Sisi Datar

The purpose of this study was to develop student work ethics-oriented student worksheets based on guided discoveries on the material of flat side space and to find out the quality of worksheets developed in terms of validity, practicality and potential effects. The method, this research is Research and Dependency (R&D), that is development research that refers to a modified 4-D development model. The instruments used to measure the quality of worksheets developed include validation sheets, practicality questionnaires, walkthroughs and tests. Worksheets that are developed are valid based on validation sheets by experts and are practical based on a practical questionnaire. The potential effects of worksheets developed can be seen from the activities and understanding of students in working on the problems given to the worksheets. The results showed that: (1) the quality of worksheets seen from the aspect of validity included in the valid category with an average score of 3.18; (2) the quality of worksheets seen from the practical aspect is categorized practically with an average score of 3.24; and (3) worksheets have a potential effect on student learning outcomes where 20 students (76.9%) are included in the category of completion while there are 6 students (23.1%) have not been completed with the Minimum Learning Completion (KBM) specified. Conclusion, ethnomatematics-oriented worksheet based on guided discovery developed is declared valid, practical and potential in improving student learning outcomes in the material of flat side spaces. Keywords: Ethnomatematics, LKS, Guided Discovery

Pengembangan Lembar Kerja Siswa (LKS) Menggunakan Contextual Teaching and Learning (CTL) Berbasis Kota Lubuklinggau

The purpose of this study was to develop student worksheets (LKS) using the Lubuklinggau city-based Contextual Teaching and Learning (CTL) on the set material in class VII according to the 2013 curriculum and find out the quality of worksheets developed from the validity, practicality and potential effects of using LKS. The research method used is Research and Development (R&D) research. Development of worksheets using a 4-D model that was modified to a 3-D model. This model consists of 3 stages, namely: the stage of defining (Define), design (Development) and development (Develop) without including the spread (Disseminate) due to time constraints. The results of the study are based on the assessment analysis by the three experts namely: linguists, material experts, and media experts showing that the worksheet fulfills valid criteria with an average score of 3.12. While the results of the analysis of student response questionnaire assessments obtained that the student worksheets meet practical criteria with an average score of 3.55 and have a potential effect of 27 students (84.37%) whose grades reach mastery learning, while 5 students (15.63%) not reached mastery learning. In conclusion, the development of student worksheets using the contextual Teaching and Learning (CTL) based on the city of Lubuklinggau is declared valid, practical and has a potential effect on students' mastery learning. Keywords: Contextual Teaching and Learning, Student Worksheet

Desain Pembelajaran Menggunakan Tessellation Berbasis Pendekatan Saintifik pada Materi Translasi dan Refleksi

The purpose of this study was to determine the role of tesselation in translational and reflection material in developing students' mathematical communication based on a scientific approach. The research method uses design research type validation study involving 30 students of class VII SMP 9 Palembang. The research process produces learning trajectory which contains a series of learning processes in two activities, namely scientific on translational material and scientific on reflection material. Every scientific activity consists of observing, asking, reasoning, trying, and forming networks. The results of the study showed that by providing learning material through a scientific approach, the role of tesselations could help students to carry out mathematical communication so that they could identify translational and reflection material. Therefore, students can understand the concepts of translation and reflection and solve problems related to the material. In conclusion, learning using tessellation with a scientific approach effectively helps students understand the concepts of translation and reflection. Through activities such as observing, asking, reasoning, trying, and forming networks Keywords: Mathematical Communication, Scientific Approach, Tessellation

Pengembangan LKS Berbasis PMRI Menggunakan Konteks Etnomatematika pada Materi SPLDV

The purpose of this study was to develop a realistic worksheet using the Ethnomatematics on SPLDV material and to determine the quality of worksheets in terms of validity and practicality. The method used in this study is the Research and Dependency (R&D) method which is a developmental study referring to the 4-D development model, namely define, design, develop, and disseminate modified to 3-D. The instruments used to measure the quality of worksheets that were developed include validation sheets, and practicality questionnaires. The product of this research is a realistic worksheet using ethnomatematics context on SPLDV material with the advice of eighth grade students of junior high school. The results showed that: (1) the quality of worksheets seen from the validity aspects included in the valid category with an overall average score of 3.06; and (2) the quality of worksheets seen from the practical aspect is categorized very practical with an overall average score of 3.5. Conclusion, the development of PMRI-based worksheets in the context of ethnomatematics in SPLDV material was declared valid and practically used by students. Keywords: Ethnomatematics worksheet, PMRI, SPLDV

Desain Pembelajaran Penjumlahan dan Pengurangan Bilangan Menggunakan Konteks Bangka Belitung untuk Mendukung KBKM Siswa

This study aims to produce learning trajectories of addition and subtraction of material numbers using the context of Bangka Belitung, also to find out whether the use of these learning designs can support students' Critical Thinking Abilities (KBKM). The research method, this research is a validation study design research type involving 6 students in the pilot experiment stage, and 25 students in the teaching experiment stage. The alleged learning trajectory was developed from a series of learning activities using the context of the Pacific Islands, such as sahang / pepper seeds as a model in learning the addition and subtraction of numbers. The results showed the use of trajectories in the context of Bangka Belitung provided different assessment results between the students' pretest and posttest scores. Most students have been able to solve the problem of addition and subtraction and provide arguments in answering the problems encountered. In conclusion, the use of instructional design using the context of Bangka Belitung in the learning of addition and subtraction of numbers can support student CBCS. Keywords: Numbers, Design, Learning Context

Penerapan Model Pembelajaran Auditory, Intellectually, Repetition (Air) terhadap Hasil Belajar Matematika Siswa

This study aims to determine the completeness of mathematics learning outcomes of VIII grade students of SMP Negeri Selangit after applying the Auditory, Intellectually, Repetition (AIR) learning model. The research method, is a quantitative research with quasi-experimental research design (quasi experiment). The sample in this study was grade VIII.4 students consisting of 30 students. Data collection was carried out using test techniques. The test data collected was analyzed using t-test. The results of the study, based on t-test analysis with a significant level α = 0.05, obtained an average test score before the application of the Auditory, Intellectually, Repetition (AIR) learning model was 22.15 and after the application of the Auditory learning model, Intellectually, Repetition (AIR) obtained an average test score of 73.94 with tcount> ttable (2,821)> (1,699). Conclusion, student mathematics learning outcomes after VIII SMP Negeri Selangit after the application of the Auditory, Intellectually, Repitition (AIR) model are significantly completed. Keywords: Auditory, Learning Outcomes, Intellectually, Repetition

Efektivitas Pembelajaran Matematika Menggunakan Media Berbasis E-Learning

The purpose of this study is to see the effectiveness of the use of e-learning based media in mathematics learning at the Raudlatuth Thalabah Vocational School. Research methods, namely quantitative research with descriptive research designs where data collection uses the test, observation, and questionnaire methods. Data analysis was performed descriptively quantitatively involving 25 students of class X-A. The results of the research and analysis of the data obtained obtained information that each aspect of the ability to manage the learning process, and student activities during learning, learning outcomes of students and the responses students have after participating in learning are good criteria. It can be concluded that mathematics learning using e-learning based media is significantly effective. Keywords: Effectiveness, E-learning Media, Mathematics Learning

Pengembangan Lembar Kerja Siswa (LKS) Menggunakan Pendekatan Matematika Realistik Indonesia Berbasis Konteks Sumatera Selatan

The purpose of this study is to produce student worksheets (LKS) that are validity and practical, and have potential effects on student learning outcomes. The method in this study uses the modified Dick and Carey development method. LKS developed valid based on expert and practical response questionnaires based on student response questionnaires. The potential effects of LKS developed can be seen from the activities of students in working on the questions on the LKS, where students more easily understand the mathematical concepts contained in the LKS and use the concepts appropriately in solving the problems given. The results of the study Of the 23 students who were the subjects of the study obtained 11 people were in the excellent category or around 47.82%. Whereas there are 5 people in katerogy or around 21.73%, enough categories are obtained by 4 people or around 17.39% and the poor category is obtained by 3 people or around 13.04%. It can be concluded that LKS designed using a realistic Indonesian mathematical approach based on the context of South Sumatra has a potential effect on student learning outcomes. Keywords: PMRI, Student worksheet, Development