Implementation of Chemo-entrepreneurship Teaching Approach for Improving Students' Life Skills

The Implementation of Chemo-entrepreneurship (CEP) Teaching Approach in Improving Students' Life Skills The study aimed at developing an innovative teaching method. Chemo-entrepreneurship (CEP) approach is a method is Chemistry teaching which relates the theory with everyday objects. This method provides the knowledge as well as the skills of Chemistry in order to transform raw materials into valuable products. The focus of the study was the improvement of students' achievement and the devel­opment of students' life skills. The subjects of the study were 39 students from the Chemistry Education Department of Universitas Negeri Semarang (UNNES). The data were obtained from the observation of the subjects, which were finally analyzed descriptively. The results of the study showed that the CEP teaching method was successfully implemented, and the students got better achievement. The study also revealed that the means of students' life skills were also improved.s' achievement of learning was in­creased. Students' average life skill score was also improved

Peningkatan Life Skill Mahasiswa Kimia Berorientasi Chemoentrepreneurship (Cep) Melalui Pembelajaran Kooperatif Stad

Based on the questionnaire to students UNNES Natural Sciences Department of Chemistry, professor of learning methods are still in the form of lectures and such very boring for students. Moreover, the material is an organic chemistry lecture course, especially the less favored and considered difficult by students because it is abstract, so it needs to be assisted visualization. It is therefore interesting to study as well as creativity and innovation fostering student learning and not so monotonous. The purpose of this study to determine the increase in life skill-oriented students Chemoentrepreneurship (CEP) through the STAD cooperative learning. This research is a class act consisting of three cycles. Each stage consists of planning, implementation, observation, and reflection. The subjects of this study is a student of Chemistry Department of Education UNNES third semester. Focus examined in this study is the increase in life skill students (academic skills). The data obtained and analyzed using descriptive methods to determine the increase in student life skill. From the research, learning classical exhaustiveness increased from stage I (43%), stage II (50%), and stage III (86%). The average score life skill (cognitive aspects) college students increased from cycle I, II, and III, respectively, 71.28; 78.21 and 89.15 .. Based on the results of this study can be concluded that the life skill students can be increased through the STAD cooperative learning-oriented CEP

Sintesis Crude Palm Oil Methyl Ester Melalui Reaksi Transesterifikasi Minyak Kelapa Sawit Dengan Metanol

Crude Palm Oil Methyl Ester (CPOME) adalah senyawa metil ester yang berasal dari reaksi transesterifikasi minyak kelapa sawit (CPO) dengan metanol. Tujuan dari penelitian ini adalah untuk melakukan sintesis CPOME melalui reaksi transesterifikasi minyak kelapa sawit dengan metanol menggunakan variasi katalis HCl, H2SO4 dan H3PO4. Reaksi dilakukan dengan cara merefluk pada suhu 60-64oC selama 6 jam dengan rasio molar metanol/minyak kelapa sawit sebesar 6:1. Konsentrasi katalis yang digunakan dalam penelitian ini adalah 0,5% b/b terhadap berat minyak kelapa sawit. Senyawa yang telah terbentuk dari reaksi didiamkan selama 1 malam agar lapisan CPOME dan lapisan gliserol dapat memisah. Lapisan CPOME dicuci dengan air hangat sampai netral lalu disaring. Selanjutnya dilakukan pengeringan dengan menambahkan Na2SO4 anhidrat. Berdasarkan hasil reaksi diperoleh cairan jernih berwarna orange dengan bau yang khas. Senyawa hasil reaksi memiliki kerapatan 0,8935 g/ml dan indeks bias 1,4624. Hasil perhitungan rendemen menunjukkan bahwa persentase rendemen tertinggi diperoleh pada penambahan HCl (45,71%) kemudian H2SO4 (34,07%) dan H3PO4 (28,43%). Berdasarkan data kromatogram GC, persentase produk CPOME yang terbentuk pada penambahan HCl diperoleh hasil yang paling tinggi (75,68%) lalu diikuti H2SO4 (70,80%) dan H3PO4 (59,08%). Hasil Spektra Massa menunjukkan munculnya 5 puncak utama senyawa CPOME, yaitu metil tetradekanoat, metil heksadekanoat, metil cis-9, cis-12-oktadekadienoat, metil cis-9-oktadekenoat, dan metil oktadekanoat

Improving Student Creative Thinking Skills Through Project Based Learning

The purpose of this study is to improve the ability to think creatively, make pyrolysis devices and make fuel oil from plastic waste. This research is a classroom action research conducted in 3 cycles with the stages of each cycle which includes 4 stages, namely observation, process, observation and reflection. The research subjects were students of class XI IPA 3 SMA Negeri 14 Semarang as many as 34 people who entered 12 sons and 22 girls. Data collection uses test instruments and measurement of creative thinking abilities and student response questionnaires. The data were analyzed descriptively and from the results of research that showed fluency, flexibility, originality, and elaboration after the application of hydrocarbon and petroleum learning. The results show that the average way of thinking of students is inthecreativepredicate.withahighincreaseineachindicatoroffluencyandelaboration   Keywords: creatively; project-based learning; classroom action research