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Research on the development of media translating the Qur'an was made to determine the need, design, and validity of learning media solving in the learning material of the Qur'an and Hadith in class III MI Dato Sulaiman Palopo. This research method is a research and development (RD) method. The development model used in this development is the ADDIE model (analysis, design, development, implementation, evaluation), but it was only carried out to the development stage in this study. The subject of this research involved 30 students. Data were collected through observation, interviews, and document searches analyzed qualitatively and quantitatively. The needs analysis results show that students need interesting symbols/pictures as learning media and add lesson content well. Learning media is designed by integrating multi-representation in Sempokas media. The feasibility of media teaching materials translating the Qur'an was carried out with the assessment of media experts with a grade level (89.5%), material experts (95.8%), linguists (91.6%), and subject teachers (96, 4%) excellent category. Thus, Sempokas media can be applied in learning to understand and translate Surah Al Ikhlas

This study aims to produce LKPD products based on Discovery Learning assisted by Software Tracker to improve understanding of the concepts of class X students at SMA Sriguna Palembang that are valid, practical, and have a potential effect on understanding concepts. This study uses a modified Rowntree development model based on formative evaluation. The subjects used in this research are students of class X IPA 2 SMA Sriguna Palembang, as many as 34 students. This research produces: 1) LKPD based on Discovery Learning assisted by Software Tracker which is valid. Based on the research results, the average results of material aspects are 81.33%, learning design aspects are 80% and language aspects are 80%, 2) practicality test results in the one to one stage obtained an average of 93% with a very practical category, 3) the results of the practicality test at the small group stage obtained an average of 87.62% with a very practical category, 4) the field test stage obtained the highest N-Gain value by 64.70% in the high category and the lowest N-Gain value is 35.29% in the medium category. ÃÂ

The purpose of this research was to find out whether Problem Based Learning (PBL) learning with authentic assessment affects the students' mathematical problem solving ability. The method of this research was quantitative research method. Its population was 11th grade of Tran Nhan Tong Senior High School Ho Chi Minh City, Vietnam in academic year 2017/2018. By using the cluster random sampling, class 11A1 was selected as a control class that gained conventional learning in Vietnam, class 11A2 as an experiment class 1 that obtained PBL learning with authentic assessment, and class 11A3 as experiment 2 class that obtained PBL learning. The data collection techniques were documentation and test method. The result of the research showed that the result of mathematical problem solving test at the experiment class 1 successfully reached classical completeness more than or equal to 75% of the students in the class, and students’ mathematical problem solving ability at the experiment class 1 was better than at the experiment class 2, while students’ mathematical problem solving ability at the experiment class 2 was better than at the control class.

During this time, the use of urea is not efficient, because about 40-70% of nitrogen in the fertilizer is not absorbed by plants. In order to increase the effectivity of nitrogen release in urea fertilizer, it needs to be coated with modified chitosan as slow releasing agent to form a hydrogel material by forming a cross linking with glutaraldehyde cross-linker.The aims of this research is to study the mechanism and the appropriate kinetic model of nitrogen release in slow releasing fertilizer of modified chitosan. This research was conducted by analyzing the ability of bio-hydrogel by calculating the percentage of swelling ratio and water retention of hydrogel and the nitrogen release in slow releasing fertilizer both in the soil and water. The experiments were conducted by varying the amount of urea used which 30 gram, 40 gram, 50 gram, 60 gram and 70 gram of urea fertilizer. The The release profile is then plotted on several models of diffusion kinetic such as zero order, first order, higuchi and korsmeyer peppas. The appropriate model of diffusion kinetic is chosen by the largest correction factor (R2).The results showed that nitrogen release of the slow releasing fertilizer in the soil with 50% urea content and the water followed korsmeyer peppas model with fickian mechanism. Nitrogen release in the soil with urea content of 30%, 40%, 60%, and 70% followed the korsmeyer peppas model with nonfickian mechanism.