scholarly journals Alkaloid Compound Identification of Rhodomyrtus tomentosa Stem as Biology Instructional Material for Senior High School X Grade

2017 ◽  
Vol 2 (3) ◽  
pp. 231 ◽  
Author(s):  
Retno Ningrum ◽  
Elly Purwanti ◽  
Sukarsono Sukarsono

Rhodomyrtus tomentosais one of herbs which belongs to myrtaceaefamily. This plant possessesalkaloid which is efficacious as anti diarrhea, anti diabetes, anti microbial, and anti malaria, however some alkaloid compoundsare poisonous. Thus,it is necessity to identify the alkaloid compounds contained in the stem of Rhodomyrtus tomentosa which are known the use. Thisresearch aimed to identify the types of alkaloid compoundsin the Rhodomyrtus tomentosa stem and find out its usesas the biology teaching materials in form of LKS (Student Work Sheet). The research was descriptive explorative which was purposed to describe the types of alkaloid compoundsin the Rhodomyrtus tomentosa stem. LC-MS (Liquid Chromatograpgy-Mas Spectroscopy) was employed in this research to analyze the compounds. The research results showed that there were seven types of alkaloid compounds within the Rhodomyrtus tomentosa, namely: maritidine (BM 288 m/z), berberine (BM 336 m/z), ismine (BM 258 m/z), tazettine (BM 332 m/z), lycorine (BM 288 m/z), deoxytazettine (BM 216 m/z), and homolycorine (BM 316 m/z). The results of the research has been used as biology teaching materials in senior high school X grade,The Biodiversity of Indonesia.

2021 ◽  
Vol 6 (2) ◽  
pp. 133-141
Author(s):  
Indah Karunia Sari ◽  
Yenny Anwar ◽  
Meilinda Meilinda

Many researchers have developed scientific literacy, but no one has done scientific literacy study on biology teaching materials that include environmental change materials. The purpose of this study is to assess scientific literacy in senior high school biology teaching materials utilized by teachers in Palembang's Ilir Barat I district. This research was conducted using biology teaching materials in the form of books and modules used by teachers in grade X in 13 senior high schools in Ilir Barat I district, Palembang, both in public and private schools. This study employed a descriptive technique with content analysis, which included collecting and assessing biology teaching materials for senior high school grade X. All biology teaching materials for grade X of senior high school utilized in Ilir Barat I district Palembang were used as the population in this study, with environmental changes in biology teaching and learning materials for grade X of senior high school as the sample. The findings revealed that the scientific literacy category was represented in the teaching materials used in 13 senior high schools in the district of Ilir Barat 1 Palembang, with an average percentage of 34.24% for the body of knowledge, 45.35% for a method of investigation, 9.75% for a method of thinking, and 10.86% for the category of science, technology, and society interaction.


2019 ◽  
Author(s):  
Akmam Akmam ◽  
Harman Amir; ◽  
Asrizal Asrizal

Physics teaching materials for Senior High School that supporting the development of human resources that is able to adapt to any changes, to solve complex problems, creative thinking and familiar with information technology has not been widely available in senior high schools in West Sumatra. Based on the above, research that aims to determine the effectiveness of the use of Physics teaching materials that integrates Mathematics, Science, Technology, natural disasters, and the noble character (MSTBK) on WEB for Senior High School grade XI and to determine the effect of the use of teaching materials MSTBK on the learning outcomes of high school students in class XI. The quasi-experiment design research was comparing the learning outcome before and after the state of the object being treated. The treatments were using physics teaching materials that developed for teaching learning in Senior High School grade XI. The experiment was conducted at five senior high schools in West Sumatra were divided into 3 levels. The data were analyzed by using a statistical product moment and Anova. The research showed that the physics teaching materials that developed are effectively to improve student learning outcomes in Senior High School grade XI in West Sumatera with a correlation coefficient (r_xy) = 0. 31. Levene Statistic showed the average of the learning outcomes of high school students in grade XI was different, but yet rules Tukey HSD and Bonferroni statistics show that there are not significantly of 0.05 at a significance level in West Sumatra


Author(s):  
Miko Pratama ◽  
Asni Johari ◽  
Jefri Marzal

The lack of Biology teaching materials in senior high school in the Kerinci District has promoted this research. The purpose of this development research is to produce e-modules as teaching materials used by students in Biology subjects. The model used in developing this e-module is the 4-D model, which consists of 4 stages, namely defining, designing, developing, and disseminating. Biology e-modules on plantae and animalia material based on the potential of the Kerinci region were validated by media and material experts. The results of the media expert validation obtained the final percentage of 90% (very valid category) and the material expert validation obtained a percentage of 75% (valid category). From the results of the field test, the teacher responded that the e-modules produced were suitable for use in biology class X high school learning with a percentage of 92.5% (very good category). Furthermore, e-module trials on students obtained responses that the products produced were also proper to be used in biology learning in class X of senior high school. The small group test obtained a score of 85% (excellent category) and the large group test obtained score 78.3% (good category). The use of the developed e-modules in learning resulted in a score of 76.3% (successful category).


Author(s):  
Nurul Kusuma Wardani Hutasuhut ◽  
Abdurrahman Adisaputera ◽  
Isda Pramuniati

The aim of this research is to create a teaching material and method in writing poetry using lotus techniques. This research also uses research and development methods. It is research that produces certain products and the effectiveness of their use. The product that will be produced in this research is in the form of poetry writing teaching materials developed with lotus techniques for 10th grade of Senior High School students in MAS Tahfizil Medan. The results of this study indicate that 10th grade students need new methods and teaching materials in improving their understanding in writing poetry. And after testing the lotus technique is very efficient to improve students' ability to write poetry. After the posttest and pretest results the results obtained are the low category by 3.33%, the medium category by 93.34%, and the high category by 3.33%.


2015 ◽  
Vol 1 (2) ◽  
pp. 114 ◽  
Author(s):  
Alfred Irambona ◽  
Kumaidi Kumaidi

This research seeks to evaluate the effectiveness of the English teaching program in senior high school: Case of SMAN3 Yogyakarta, grade eleven. This study was a summative case study using a mixed-method. Descriptive statistics were used to analyze quantitative data and qualitative data followed a descriptive analysis following the CIPP model. The informants were 43 students of SMAN3 and two English teachers. The context findings showed that program objectives, classroom condition, students’ needs and barriers were in effective category. In input component, it is found that both teachers were qualified and experienced. The teaching training was not enough; students’ textbooks and course designs were in effective category. The process component showed that teaching materials, teaching methods, teaching activities and assessments were in effective category. The product component showed that English marks, students’ needs and barriers were in effective category. However, the teaching materials were in ‘not effective’ category.


2018 ◽  
Vol 7 (2) ◽  
pp. 245
Author(s):  
Sri Wahyuni

Humor dan Pesan Moral Teks Anekdot pada Buku Ajar Bahasa Indonesia Kelas X SMA Kurikulum2013. Penelitian ini bertujuan untuk mendeskripsikan wujud humor dan pesan moral yang terdapatdalam teks anekdot pada buku ajar bahasa Indonesia kelas X SMA K13. Pendekatan dalam penelitianini menggunakan pendekatan pragmatis dan pendekatan moral. Untuk mengungkapkan humor padateks anekdot tersebut penulis menggunakan teknik analisis wacana berdasarkan teori konflik, teorikeganjilan, teori tak diharapkan/salah paham, dan teori konfigurasi. Data penelitian ini adalah teksanekdot, maka penulis menggunakan metode analisis isi. Berdasarkan hasil pembahasan wujud humoryang terdapat dalam teks anekdot tersebut, yaitu humor kritik, humor meringankan beban pesan, danhumor semata-mata pesan. Pesan moral yang terdapat dalam teks tersebut, yaitu jangan takut kehilangan246jabatan, selalu ada cara dan solusi dalam segala hal, jadilah orang jujur dan tidak korupsi; hasil bumikita tidak perlu diekspor harus hati-hati melaporkan suatu kejadian; lihatlah apa isi yang disampaikanseseorang; jangan melakukan penyuapan; jangan selalu menganggap orang lain salah, manfaatkankekayaaan dengan baik; jadilah orang yang teguh pendirian dan jangan tergoda hawa nafsu; janganasal menuduh seseorang tanpa ada bukti; berilah pertolongan kepada orang yang mengalami musibahatau kesulitan; memperlakukan orang tua dengan baik; jangan membedakan status sosial; akan adajalan keluar sebuah masalah; hati-hati dengan wujud penyuapan yang berupa kemewahan.Kata-kata kunci: humor, pesan moral, teks anekdot


2018 ◽  
Vol 12 (1) ◽  
pp. 23
Author(s):  
Anis Fuad Salam ◽  
Suwiro Heriyanto

   The purpose of this study is to know: 1) the effect of certification on the performance of accounting teachers in Senior High School (SMA) Kota Cilegon; 2) the influence of career development on the performance of high school accounting teachers in Cilegon City; 3) the influence of certification and career development together towards the performance of accounting teachers in SMA Kota Cilegon. The method used is a survey of all high school accounting teachers in Cilegon City. Number of samples counted 48 people. Based on the research results can be concluded: (1) There is a significant influence between teacher certification with job satisfaction of accounting teachers in Cilegon City; (2) there is a significant influence between career development with job satisfaction of accounting teacher in Cilegon City; and (3) there is a significant influence between teacher certification and career development on accounting teacher accounting satisfaction in Cilegon City. 


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