Alur belajar perbandingan trigonometri dengan konteks bianglala

The Ferris wheel is one of the rides at the night bazaar and is often encountered by students. This is a potential for math learning. Through Realistic Mathematics Education (RME) approach, students learn mathematics with contexts close to students' lives as a starting point. Therefore, this study aims to design a learning trajectory using the RME approach with a Ferris wheel as a context in the learning process to support students' understanding of learning trigonometric comparison. The research method used is a type of design research called validation studies, which consists of three stages: preliminary design, design experiment, and retrospective analysis. The subjects of this study were 27 class X students from SMAN 3 Sungai Penuh. The instruments used are videos to see the learning process and when students work on the given problems, and photos to see the results of student work. The results of the study explored the learning trajectory practiced by using the Ferris wheel as a context, which is seen in students' daily activities. The learning trajectory consists of four activities, namely sketching a simpler Ferris wheel, redrawing the parts of the Ferris wheel where seats A and B are, measuring and comparing sides in a right triangle, and determining trigonometric comparisons

PROTOTYPE PEMBANGKIT LISTRIK TENAGA MIKROHIDRO DITINJAU DARI ARAH ALIRAN FLUIDA KELUAR NOZEL PADA TURBIN CROSSFLOW TERHADAP DAYA YANG DIHASILKAN

Dalam rangka mengatasi krisis energi listrik, telah banyak dilakukan penelitian mengenai energi baru terbarukan, salah satunya dengan memanfaatkan energi air. Pemanfaatan pembangkit energi air berbasis mikrohidro menjadi salah satu solusi dalam mengatasi pemerataan pengguna energi. Prototipe dirancang dengan menggunakan komponen-komponen yang meliputi pompa, turbin, generator, dan nozel. Adapun jenis turbin yang digunakan yaitu turbin crossflow. Penggunaan arah aliran fluida menjadi kajian yaitu dengan memvariasikan arah aliran pada arah overshoot horizontal, overshoot vertikal, dan undershoot. Dari debit aliran yang keluar nozel kemudian menabrak sudu turbin untuk menghasilkan putaran pada generator dan menghasilkan listrik. Berdasarkan hasil penelitian, didapatkan arah aliran yang optimal yaitu arah aliran overshoot horizontal menghasilkan debit aliran 29 liter/menit, kecepatan putaran turbin 200 rpm serta daya yang dihasilkan 16 watt

Analisis Miskonsepsi Siswa Pada Materi Larutan Elektrolit Dan Non Elektrolit Menggunakan Instrumen Multirepresentasi Four-Tier Diagnostic Test Berbasis Piktorial

Penelitian ini bertujuan untuk mengetahui miskonsepsi yang dialami siswa pada setiap aspek multirepresentasi pada materi larutan elektrolit dan non elektrolit dan untuk mengetahui faktor-faktor yang mempengaruhi miskonsepsi siswa. Penelitian ini menggunakan metode deskriptif kuantitatif. Sampel penelitian terdiri dari 64 siswa kelas X MIPA SMAN 1 Tulungagung tahun ajaran 2021/2022 yang ditentukan dengan teknik purposive sampling. Instrumen yang digunakan dalam penelitian adalah tes diagnostik four-tier terintegrasi multirepresentasi berbasis piktorial sebanyak 22 butir soal. Koefisien reliabilitas soal yang diperoleh dari analisis data hasil uji coba soal sebesar 0,879 dengan kriteria sangat tinggi. Hasil penelitian menunjukkan bahwa miskonsepsi yang dialami siswa pada materi larutan elektrolit dan non elektrolit terjadi pada semua aspek multirepresentasi dengan persentase miskonsepsi pada representasi makroskopik-submikroskopik sebesar 28,45%, pada representasi simbolik-submikroskopik persentase miskonsepsi sebesar 22,20%, sedangkan pada representasi makroskopik-simbolik persentase miskonsepsi sebesar 20,85%. Faktor-faktor yang mempengaruhi miskonsepsi siswa adalah karakteristik dan keterkaitan materi larutan elektrolit dan non elektrolit dengan materi sebelumnya, minat dan gaya belajar siswa, sistem pembelajaran jarak jauh, dan rendahnya kemampuan serta penalaran siswa dalam memahami materi larutan elektrolit dan non elektrolit.   Kata kunci: miskonsepsi, larutan elektrolit dan non elektrolit, multirepresentasi four-tier diagnostic test berbasis piktoria

Pengaruh Penerapan Media Pohon Literasi Terhadap Kemampuan Berpikir Kritis Peserta Didik Kelas V SDN 2 Way Lima Kabupaten Pesawaran

This study aims to determine whether there is an effect of applying learning media using literacy trees on the critical thinking skills of fifth grade students at SD Negeri 2 Way Lima, Pesawaran District. This research is a quantitative research with the type of pre-experimental design that uses the form of one group pre-test post-test design. The population in this study were fifth grade students at SD Negeri 2 Way Lima, Pesawaran Regency. Determination of the sample with saturated sampling technique. Data collection techniques and data collection instruments using observation, documentation and testing techniques. The data analysis technique used was the t-test (paired sample t test) for the same sample with different treatments (pre-test post-test) with tcount < ttable with a value of 0.003 <0.05. This proves that there is an effect of applying literacy tree media to the critical thinking skills of fifth grade students at SD Negeri 2 Way Lima, Pesawaran Regency

Ekstraksi Fitur Tekstur dan Warna pada Kulit Katak Menggunakan GLCM dan Momen Warna

Anura is an order in the Amphibian class consisting of frogs and toads. Anura is very important in the ecosystem, especially its role as part of the food chain. Anura's main role is to maintain the balance of the ecosystem and as a bioindicator agent for changing environmental conditions such as water pollution, habitat destruction, disease and parasites, and climate change. This research applies digital image processing technology which is expected to assist in detecting types of frogs based on color and texture. This research uses 5 types of frogs, namely kongkang gading, kongkang poison, striped trees, small trees and flying trees with 20 images of each type of frog. This research uses the color feature extraction methods such Color Moment and texture extraction GLCM (Gray Level Co-occurance Matrix), then classified using K-Star. The results of the K-Star performance evaluation to classify the 5 types of frogs obtained the Accuracy (Acc) value of 0.93, Precision (Prec) of 0.94, Recall (Rec) of 0.93 and F-measure of 0.93. So that the classification results of frog species on texture and color feature extraction using the GLCM method and the Color Moment with the K-Star classification method have high performance and can work well

Development of Problem Based Learning E-module Based on Research Hormone Leptin Levels in Rats Hyperglycemic

One cause of low student understanding of the material is the hormone leptin, a less comprehensive learning resource. Problem Based Learning is one of the demands in education that must be taught to students, one of the ways to use the results of research on the levels of the hormone leptin in rats hyperglycemic as a learning resource. This study aims to develop a problem-based learning-based e-module based on research hormone leptin levels in rats hyperglycemic invalid and practical. The e-module is developed based on the stages of the ADDIE development model. The e-module has developed later through the validation stage of the material and media experts. The practicality test was carried out by educational practitioners and 15 students who had taken the Endocrinology course at the State University of Malang. The data analysis technique used quantitative  data in the form of a validation scores of material experts, media experts, and  practicality. The data collected in the form of qualitative data in the form of comments and suggestions validators. The results obtained from the results of the validation of material experts were 91.66%, teaching materials experts 92.11%, field trials expert practitioners 95.83%, and the average student response 86.54%. Based on these results, e-module can be very valid and practical for use in teaching and learnin

HUBUNGAN ANTARA HARGA DIRI DENGAN PENCAPAIAN SUCCESSFUL AGING PADA LANSIA WANITA DI DESA KARANGTENGAH

The changes in physical, psychological and social condition in the elderly can lead to the emergence of feelings of worthlessness, helplessness and uselessness that may influence their self-esteem. Physical, psychological and social condition in elderly women in Indonesia indicated a lower quality compared with elderly men. Self-esteem has influence on psychological well-being required to achieve successful aging. This research aimed to determine a positive relationship between self-esteem and achievement of successful aging on elderly women in Karangtengah village.This research was a quantitative research using cross sectional study design. The sample in this research was 142 elderly women selected by using simple random sampling technique. Data were collected using a questionnaire of Rosenberg Self-Esteem Scale and Successful Aging Scale. Data analysis in this research used Spearman test. The result of correlation test indicated that there was a statistically very strong positive relationship between self-esteem and achievement of successful aging on elderly women in Karangtengah village (r=0.866, p=0.000). Furthermore, the result of correlation test also indicated that there was a statistically positive relationship between self-esteem and the aspects of successful aging, such as a functional well (r=0.660, p=0.000), psychological well-being (r=0.539, p=0.000), selection, optimization and compensation (r=0.607, p=0.000) as well as primary and secondary control (r=0.705, p=0.000). High selfesteem can improve the achievement of successful aging on elderly women in Karangtengah village.&nbsp

HUBUNGAN ANTARA HARGA DIRI DENGAN PENCAPAIAN SUCCESSFUL AGING PADA LANSIA WANITA DI DESA KARANGTENGAH

The changes in physical, psychological and social condition in the elderly can lead to the emergence of feelings of worthlessness, helplessness and uselessness that may influence their self-esteem. Physical, psychological and social condition in elderly women in Indonesia indicated a lower quality compared with elderly men. Self-esteem has influence on psychological well-being required to achieve successful aging. This research aimed to determine a positive relationship between self-esteem and achievement of successful aging on elderly women in Karangtengah village.This research was a quantitative research using cross sectional study design. The sample in this research was 142 elderly women selected by using simple random sampling technique. Data were collected using a questionnaire of Rosenberg Self-Esteem Scale and Successful Aging Scale. Data analysis in this research used Spearman test. The result of correlation test indicated that there was a statistically very strong positive relationship between self-esteem and achievement of successful aging on elderly women in Karangtengah village (r=0.866, p=0.000). Furthermore, the result of correlation test also indicated that there was a statistically positive relationship between self-esteem and the aspects of successful aging, such as a functional well (r=0.660, p=0.000), psychological well-being (r=0.539, p=0.000), selection, optimization and compensation (r=0.607, p=0.000) as well as primary and secondary control (r=0.705, p=0.000). High selfesteem can improve the achievement of successful aging on elderly women in Karangtengah village.&nbsp

Meningkatkan Hasil Belajar Bahasa Inggris pada Ketrampilan Speaking Materi Descriptive Lisan Sederhana yang Berterima Melalui Model PBL

The aim of this research is to determine whether the use of Problem-Based Learning (PBL) can enhance English learning outcomes in the skill of speaking with simple descriptive oral material in an acceptable manner. The research method employed is classroom action research, consisting of 2 cycles. The research subjects are 32 students from class VII F at SMPN2 Jogonalan in the academic year 2023/2024. Data analysis utilizes comparative descriptive analysis techniques by comparing the initial conditions with the results achieved in each cycle. Additionally, qualitative descriptive analysis is used to analyze observation results by comparing observations and reflections in cycles 1 and 2. Based on the discussion of the data analysis presented, it is evident that the PBL model has been able to improve English learning outcomes in the skill of speaking with simple descriptive oral material in a satisfactory manner. The PBL learning model provided to students in class VII F has been successfully completed satisfactorily. The initial completion rate was only 60%. However, after implementing the PBL model, the completion rate increased to 86%, with a minimum passing grade of 7.4. Conclusively, based on the research findings, it can be inferred that the PBL model can enhance English learning outcomes in the skill of speaking with acceptable descriptive oral material for students in class VII F at SMPN2 Jogonalan in the first semester of the academic year 2023/2024. It is recommended for teachers to enhance the learning outcomes in speaking skills with simple descriptive oral material using the PBL teaching model