{"title":"EFEKTIVITAS PEMBELAJARAN KETERAMPILAN PROSES SAINS (KPS) PADA POKOK BAHASAN TERMO KIMIA DALAM MENINGKATKAN KEMAMPUAN SISWA DI SMA NEGERI 1 KRUENG BARONA JAYA KABUPATEN ACEH BESAR DINAS PENDIDIKAN ACEH","authors":"M. Daud","doi":"10.22373/lj.v6i1.3157","DOIUrl":"https://doi.org/10.22373/lj.v6i1.3157","url":null,"abstract":"The effectiveness of learning Science Process Skills (SPS) on Thermochemistry subject is one of the factors that affecting the quality of learning. The aim of this study was to find out how is the planning, implementation, and evaluation of learning conducted by teachers in SMA Negeri 1 Krueng Barona Jaya of Aceh Besar. This research used descriptive qualitative approach. Technique of data collection is done through observation, interview, and documentation study. The data analysis procedure is done through data reduction, data display, and verification. The subjects of this study were principals, vice principals, chemistry subject teachers, and students. The results showed that: (1) The Learning Science Process Skills (SPS) planning that conducted by the teachers was done with the preparation of the Lesson Plans, Learning activities that followed by a syllabus development procedure based on competency standards and basic competencies; (2) The process of implementation of learning Skills Process of Science (SPS) was done gradually by using the implementation plan of learning. In the initial stages, the core stage, and at the closing stage the teacher gave students the opportunity to write down the material presented; and (3) the evaluation of learning programs that conducted by the teachers in the written test form and includes three stages of assessment: daily test, mid-semester test, and semester re-examination.","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44341958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"SINTESIS DAN KARAKTERISTIK BATANG TANAMAN RUBIK (CALOTROPIS GIGANTEA) SEBAGAI MATRIKS PLASTIK BIODEGRADABLE","authors":"Khairun Nisah","doi":"10.22373/LJ.V6I1.3172","DOIUrl":"https://doi.org/10.22373/LJ.V6I1.3172","url":null,"abstract":"Indonesian people consider the Rubik plant (Calotropis gigantean) is only a wild plants that have no benefits. It is often felled and thrown away. This study was aimed to provide the information the utilized these crops. This research was conducted to determine the ability and characteristics of Rubik stems (Calotropis gigantean) as an addictive substance plasticizer filler, where the rubrik plant was taken at the seaside area of Banda Aceh. Preparation of plasticizers from the filler of this rubric stem was used as an antiseptic and biodegradable plasticizer. The results of FT-IR spectra measurements of the filler plastics of this rubrik plant have a distinct tannin functional group absorption, at 923.850 cm-1 strong buckling numbers were indicated the presence of a potent buckling C-H group due to the presence of the aromatic groups in the tannin compound. For the SEM test, the plasticizer has a porous surface morphology of the outermost layer, this indicates the density of particles smaller than the plasticizer 2 grams of water compared to plasticizer 1 gram of water. The test of biodegradable and Aspergillus Niger fungi on time variations about 10 days were resulted in significant degradation. The rate of degradation with soil was greater than the Aspergillus Niger. Toxicity was used of Escherichia coli bacteria in medium of nutrient agar at 37°C with 48 hours incubation where in plasticizer has antiseptic to Escherichia coli.","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68317767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"UPAYA PENINGKATAN AKTIVITAS BELAJAR MAHASISWA PRODI PENDIDIKAN BIOLOGI MENGGUNAKAN PENDEKATAN CONTEXTUAL TEACHING AND LEARNING (CTL) PADA MATA KULIAH KIMIA DASAR","authors":"Haris Munandar","doi":"10.22373/lj.v6i1.3215","DOIUrl":"https://doi.org/10.22373/lj.v6i1.3215","url":null,"abstract":"General chemistry is a subject that being studied in almost every science course. The subject is closely related to the environment, so it will be very easy to learn when involve examples in everyday life. The Contextual Teaching and Learning (CTL) approach is an approach that links the learning materials with the real-world environment. This research was conducted by using a CTL approach in a general chemistry subject which is one of the compulsory subjects in Biology Education Program of Tarbiyah Faculty UIN Ar-Raniry. The aim of this study was to determine the increase of student learning activities after using the CTL approach to general chemistry lecturing activities. The design of this study used action classroom research. This study was conducted to the first semester students. The student amount was 31 students. The instrument used was an observation sheet of learning activity. The results was obtained that the activities of the student during the learning process in the first cycle reached 70% and increased to 90% in cycle II. This proves that the application of CTL approach can increase the learning student’s activity of Biology Education Studies in general chemistry courses.","PeriodicalId":33707,"journal":{"name":"Lantanida Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45728442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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