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Ragam Kultivar Kopi di Lampung EVIZAL, RUSDI; SUGIATNO, SUGIATNO; PRASMATIWI, FEMBRIARTI ERRY
Agrotrop : Journal on Agriculture Science Vol 5 No 1 (2015)
Publisher : Fakultas Pertanian Universitas Udayana

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Variability of Coffee Cultivars in Lampung. Province of Lampung is production region of Robusta coffee in Indonesia. Farmer plant seedling of progeny resulted in high variability of coffee bean production. High yield clones then were used as grafting material to improve coffee production. The research aimed to study variability of coffee cultivars in Lampung and factors affecting its production. Respondent farmers and coffee fields to be surveyed were determined by purposive sampling method from 3 district of West Lampung, Tanggamus, and North Lampung. Three sub-districts were taken from each district to choose a farmers group. The results showed that there were 27 cultivars found in location including 25 cultivars were Robusta coffee and the rest were Arabica and Liberica. In each district, the compositions of dominant cultivars were different. Farmers were able to describe the cultivars based on characteristics of fruits and beans, leaves, shoots, and branches. Some cultivars come from other province of outside Lampung. Dominance indices and richness of cultivars together with elevation level of coffee field had significant negative effects on coffee productivity, while fertilize doses had positive effects.
KELANCARAN PROSEDURAL MATEMATIS SISWA DALAM MENYELESAIKAN SOAL OPERASI BENTUK ALJABAR DI SEKOLAH MENENGAH PERTAMA Damayanti, Eka; Sugiatno, Sugiatno; Sayu, Silvia
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 7, No 9 (2018): September 2018
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

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Abstract The aim of this research is to describe the procedural fluency mathematic of students in solving algebraic operations. In this research, the procedural fluency based on two aspects: the students’ knowledge of procedural and the knowledge of using the procedural in the proper time to solve algebraic operations. The method of research used case study as the qualitative method. The subject of research were some junior high school students who lived around the researcher’s environment. The instrument of research consist of major instrument (the researcher) and supporting instrument (test and interview). Based on the result of research, the researcher found that the students’ knowledge of procedural fluency mathematic was not fluent enough. It is proven by the students’ answers. Most of them made mistake in answering the circumference of a rectangle and in operating unlike terms. Moreover, the students also confused when and how to use the procedural in solving algebraic operations. They were not consistent in operating like terms and unlike terms. In addition, they could not explain the correct reasons in using the procedural mathematic to solve algebraic operations.  Keywords: Procedural Fluency, Problem Solving, Algebraic Operations
PENINGKATAN PEMAHAMAN KONSEPTUAL SISWA MELALUI PEMBELAJARAN MATERIAL MANIPULATIF DALAM MATERI BILANGAN BULAT DI SMP Bimantara, Abdul Rauf; Sugiatno, Sugiatno; Munaldus, Munaldus
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 7, No 6 (2018): Juni 2018
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

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AbstractThe purpose of this research is to explain the improvement of conceptual understanding of students through the learning of manipulative material in the matter of integers at SMP Negeri 8 Pontianak academic year 2017/2018. The research method used is Single Subject Research (SSR) method with A-B-A-B design. The subjects of this research are students of class VII E Junior High School 8 Pontianak, amounting to 5 students. Data collection techniques used were measurement techniques. The data collection tools used test. The results of data analysis from this research indicate that there is an improvement of conceptual understanding of students through the learning of manipulative material in the material of addition operation and reduction of integer with each phase a conceptual understanding test of 1 session was obtained by baseline phase 1 with an average percentage of 24.54%, treatment phase 1 with an average percentage of 69.09%, baseline phase 2 with a percentage of 72.72% and phase treatment 2 with a percentage of 90%. Keywords:  Conceptual Understanding, Manipulative Material    
HAMBATAN BELAJAR SISWA BERDASARKAN PENALARAN ANALOGI DALAM MATERI ARITMATIKA SOSIAL DI SEKOLAH MENENGAH PERTAMA Chanisah, Chanisah; Sugiatno, Sugiatno; Sayu, Silvia
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 8, No 6 (2019): JUNI 2019
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

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AbstractThis study is entitled "Student Learning Obstacles Based on Analogy Reasoning in Social Arithmetic Material in Junior High Schools". The research method used is descriptive method with the form of case study research. The subjects of this study were students of class VII A Pontianak State Middle School consisting of 32 students. The results showed that student learning barriers based on the analogy reasoning in the social arithmetic material include: (1) Based on the components of thinking Encoding students do not experience obstacles and can identify the characteristics or structure of the problem sources and target problems; (2) Based on the components of Inferring thinking, there are students who experience obstacles in finding relationships in the source problem; (3) Based on the components of Mapping thinking, students experience obstacles in finding relationships or solutions found in the target problem; (4) Based on the components of Applying thinking, students experience obstacles in calculating the target number and choosing the right formula. Keywords: Analogy Reasoning, Learning Obstacles, Social Arithmetic
KEMAMPUAN PENALARAN ADAPTIF SISWA DIKAJI DARI GAYA KOGNITIF DALAM MATERI SEGIEMPAT DI SMP Arnika, Ika; Sugiatno, Sugiatno; Suratman, Dede
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 8, No 11 (2019): Nopember 2019
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

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AbstractThe background in this research is the student’s adaptive reasoning ability that is still relatively low. Adaptive reasoning ability are influenced by some factors,  one of them is student’s cognitive style. Therefore, adaptive reasoning ability should be analyzed based on student’s cognitive style. This research aims to describe the student’suu adaptive reasoning ability based on cognitive style in quadrilateral at SMP Negeri 8 Pontianak. The research method use descriptive method with case study. The subject in this research are four students grade VIII D consist of two reflective cognitive style students and two impulsive cognitive style students. The result of data analysis showed that the adaptive reasoning ability are different depending on their cognitive style.  One of students who has reflective cognitive style can  fulfill five indicator of adaptive reasoning ability and one of other students who has reflective cognitive style can  fulfill four indicator of adaptive reasoning ability. One of students who has impulsive cognitive style can  fulfill four indicator of adaptive reasoning ability and one of other students who has impulsive cognitive style can  fulfill two indicator of adaptive reasoning ability.  Keywords: Adaptive Reasoning Ability, Cognitive Style, Quadrilateral
POTENSI LEARNING TRAJECTORY SISWA DALAM PERBANDINGAN TRIGONOMETRI DI SMA Mutmainah, Heti Qodar; Sugiatno, Sugiatno; Bistari, Bistari
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 8, No 12 (2019): Desember 2019
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

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Abstract The potention of students learning trajectory in comparison of trigonometry of X IPA students at SMAN 1 Pontianak were uneffective. This research was describe to the potention of students learning trajectory there was a new inovation in mathematics learning model using learning trajectory, and to increase mathematics learning effectiveness of learning trajectory towar the potention of student on learning goals, learning activity, and hypothetical learning trajectory . This research is in the form of a semi-descriptive qualitative that uses a single subject design. The research sample consisted of 6 student (10% of 40 student in a class) as the experimental group selected by participatory observation technique. Participatory observation technique test, interview guidelines, documentation, discussion group forum and triangulation/combination were used to collect data. Based on final pretest and posttest data analysis using directly to completion. This is indicated by the increasing potential of students' learning trajectory in trigonometric comparisons in senior high schools using learning trajectory successfully achieved through unit circles. Thus, the potention of students learning trajectory can build on mathematical conceptual understanding in trigonometric comparison material. Keywords: Learning Trajectory, Potention, Trigonometry, and Unite Circle.
POTENSI BERPIKIR KREATIF SISWA DALAM PENYELESAIAN SOAL CERITA MATERI SEGITIGA DI SMP Zuliyanti, Zuliyanti; Sugiatno, Sugiatno; Suratman, Dede
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 7, No 6 (2018): Juni 2018
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

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AbstractThis study aims is to describe the potention of students in thinking creatively in accomplishing narrative questions about triangle in Senior High School Boedi Oetomo. The method of this study is a case study  by which the result  is explained descriptively. The subject of this researchwas 26 students with the object of the study is creative thinking in accomplishing the questions about triangle. The result of this study shows that the potention of students creative thking in the aspect of fluency scored 80.34 %, 53.84 % for flexibility, 75 % for the originality and 39.42% for the details. It could be concluded that the potention of students creative thinking in acommplishing triangle tasks in form of story questions Boedi Oetomo Senior High School could be categorized as very good in the aspect of fluency, enough for the aspect of flexibility, good in the aspect originality and in the aspect of detail was weak.Key words : Potention of Creative Thinking, Story questions, Triangle Material
KEMAMPUAN TRANSLASI DAN TRANSFORMASI REPRESENTASI MATEMATIS SISWA DALAM MENYELESAIKAN SOAL CERITA KONTEKSTUAL MATERI HIMPUNAN Arifin, Muhammad Nur; Sugiatno, Sugiatno; Suratman, Dede
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 7, No 7 (2018): Juli 2018
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

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Abstract This research aims to describe students’ translation and transformation ability on mathematical representation in solving contextual word problems of sets in class VIII SMP Negeri 18 Pontianak. The method that was use in this research is descriptive method with case study form. The subject of this research are 35 students. The data collection instrument that used is written test in essay and interview as the follow-up activity. The result of data analysis showed that the students’ translation ability on mathematical representation from the verbal representation  to the symbol representation (sets symbol) is classified as very low with percentage 100%; students’ translation ability on mathematical representation from the symbol representation (sets symbol) to the visual representation (Venn diagram) is classified as very low with percentage 60%; students’ translation ability on mathematical representation from the verbal representation  to the symbolic representation is classified as very low with percentage 100%; students’ transformation ability on mathematical representation in symbolic representation is classified as very low with percentage 51.43%; and students’ transformation ability on mathematical representation in verbal only a small part with percentage 40% which reached very high. Kata kunci : kemampuan translasi, kemampuan transformasi, soal cerita   kontekstual, himpunan                           
PENGEMBANGAN SOAL BERSTRUKTUR INVESTIGASI MATEMATIKA DALAM MENYELESAIKAN MASALAH POLA BILANGAN Cendra Kasih, Dayang Juniarti Permatasari; Sugiatno, Sugiatno; Suratman, Dede
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 7, No 2 (2018): Februari (2018)
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

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 AbstractThe purpose of  this research is to develop mathematical investigation structure problem in solve the problems of pattern number. The methode that use is the research and development. The first phase in this research is self-evaluation, in the next phase is one-to-one pilot which run in parallel with experts review. Then pilot field in the small group phase. Qualitative data analisys is used in the beginning phase one-to-one and experts review, while quantitave data analisys is used in the pilot field small group. The result of this research is a mathematical investigation structure problem that is reasonable to use based on the  expert review result  and according to the mathematical investigation indicators that have been determined. While the quality of the mathematical investigation structure problem has a good quality .Keywords: Research and Development,  Problem, Mathematical Investigation, Pattern Number 
HAMBATAN BELAJAR SISWA DIKAJI DARI KEMAMPUAN LITERASI STATISTIK DI SEKOLAH MENENGAH PERTAMA Marlina, Mira; Sugiatno, Sugiatno; Yani T, Ahmad
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 8, No 9 (2019): September 2019
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

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AbstractThe purpose of this study is to explain the learning obstacles experienced by students in the ability of statistical literacy that students have in junior high school. The research method used is a descriptive method with the case study form of studies. The research agency is 5 students of Class IX G in SMP Negeri 2 Pontianak. The selection of the body is done by giving test literacy ability statistics and then 5 selected students each again given a test of difficulty and conducted interviews. The data collection techniques used are written tests and interviews. The data collection tools used are test instruments, hsse interviews, and cameras. The results of this research data analysis Products that in general the literacy skills of student statistics classified as Sell, from 36 students, obtained by the results of 8% students have a very high ability, 17% of students who are highly capable, 28% of students are capable, 33% Sell-enabled students and 14% of students are highly skilled. In addition, based on the results of the research, it is known that from 5 students, it is very easy to experience the didactic obstacles (didatical constraints), ontogenesis obstacles (ontogenic obstacles) and epsietemological obstacles (epistemological constraints).Keywords: statistical literacy, learning obstacles
Co-Authors Agung Hartoyo Agustin, Sri Asih Agustriandi, Hendri ahmad yani Ahmad Yani T Amalia, Anissa Antika, Rizka Sulung Arifin, Muhammad Nur Arnika, Ika Artha, Dita Dani Asep Nursangaj, Asep Asep Nursangaji Asmida, Asmida Bernati, Megasari Bimantara, Abdul Rauf Bistari, Bistari BS, Dian Ahmad Cendra Kasih, Dayang Juniarti Permatasari Chanisah, Chanisah Christianti, Tarsila Dad R. J. Sembodo, Dad R. J. Dad Resiworo Sembodo, Dad Resiworo Damanik, Fernando Iskandar Dede Suratman Deni Deni Dian Ahmad Edy, Akari Eka Damayanti Elviani, Dina Febriano, Rionald Fembriarti Erry Prasmatiwi Fransiska, Valeria H. Hamim Haliem, Theresa Dwita Halimatussa'diah, Halimatussa'diah Hamdani Hamdani Hamengkubuwono Hamengkubuwono, Hamengkubuwono Hani, Darfi Harun Harun Hastari, Nana Herawati Hamim Hermawan Susanto, Hermawan Herry Susanto Hidayat Pujisiswanto Idi Warsah, Idi Irwan Fathurrochman, Irwan Koriyando, Virgio Kurniason, Hugo Theo Kusumawati, Evi Larasati, Dinda Dwi Lestari, Fauji Lestari, Yanti Ngudi Lusiana Lusiana Mardhayanti, Annisa Sabillah Mardotella, Mardotella Maryudi Maryudi Medellu, Antonius Mimin, Philipus Mira Marlina Muhammad Amin Muhtar Hamdan, Muhtar Mukarromah, Laeli Munaldus, Munaldus Mutmainah, Heti Qodar Nanik Sriyani Niar Nurmauli, Niar Nisa, Syaicha Fachrun Nur Aini Nurul Husna Nurwahyuni Nurwahyuni Pariyanto, Agus Parno, Muhamad Permata, Ayunda Pratikna, Dominicus Savio Putri, Zakiah Norma Rasmania, Rasmania Rayo, Kandida Maro Rif’at, Mohamad RINI RINI Romal Ijuddin RUSDI EVIZAL rusti yarso Ruzniar, Riza Samaray, Silvana Samosir, Wilin Trifonia Saputra, Tatang Saputri, Linda Dwi Saragih, Winson Hotmawan Selfinus Selfinus, Selfinus Setiawati, Dwi Setyo Dwi Utomo Setyo Widagdo Siahaan, Rahelia silvia sayu Sinthia, Desti Siti Halidjah Sopia, Nurapni Stiawan, Aresta Dwi Suharta, Muhammad Sulisti, Hidayu Sunindri, Sunindri Suriyanti, Erva Tan, Heryanto Utami, Zhafirah Atiqah Wulandari, Adinda Cintya Yakobus Ason, Yakobus Yanuarini, Aditya Agnes Yulis Jamiah Yunita, Kurnia YUSNITA YUSNITA Zalinin, Zalinin Zuliyanti, Zuliyanti Zulkarnain, Rezkie