Keterampilan komunikasi termasuk dalam salah satu keterampilan dasar yang harus dimiliki oleh siswa. Keterampilan komunikasi mencakup beberapa aspek penting yang berbeda, yaitu keterampilan dalam perilaku, kemahiran dalam bahasa Indonesia, dan keterampilan dalam melakukan percakapan dan presentasi. Siswa yang memiliki kemampuan komunikasi yang baik akan berperan aktif dalam proses pembelajaran. Proses pembelajaran yang aktif dapat diwujudkan oleh siswa yang tidak hanya mencatat dan mendengarkan, tetapi juga mengembangkan pengetahuan dan menciptakan diskusi aktif antara siswa dan guru. Meskipun keterampilan komunikasi penting bagi siswa, kondisi menunjukkan bahwa siswa masih mengalami kesulitan berkomunikasi yang mengakibatkan kepasifan siswa dalam proses pembelajaran. Siswa cenderung menggunakan bahasa daerah daripada bahasa Indonesia. Penelitian ini bertujuan untuk mengembangkan kemampuan komunikasi bahasa Indonesia siswa sekolah dasar melalui materi biopori berbasis laboratorium alami. Pembelajaran dilakukan selama 3 kali pertemuan dengan materi pembelajaran biopori. Selama pelaksanaan pembelajaran, siswa melakukan pretest, posttest, dan observasi. Hasilnya menunjukkan bahwa keterampilan komunikasi siswa telah meningkat. Sebagian besar siswa menunjukkan keterampilan komunikasi dalam bahasa Indonesia daripada dalam bahasa lokal. Hal ini diketahui melalui diskusi dan pasca tes secara lisan, siswa dan guru menggunakan bahasa Indonesia dengan baik.
Critical thinking skills are very important to be acquired by the students in the 21st century. In science learning, students are required to think critically. However, students’ critical thinking skills at the junior high school level are included in the low category. The 5E learning cycle model is the learning model that is considered can train the student's critical thinking skills optimally. The purpose of this study was to examine the effect of the 5E learning cycle model on junior high school students' critical thinking skills in science learning and to describe the improvement of junior high school students’ critical thinking skills. This type of research is experimental research with a quasi-experimental design and nonequivalent (pretest and posttest) control-group design. The results of the study for the effect test using the independent sample t-test obtained the value of Sig. (2-tailed) of 0.016 which means <0.05. The implication is that the 5E learning cycle model has a significant effect on the thinking skills of junior high school students in learning science. For the improvement test using N-Gain, an average N-Gain of 0.5875 was obtained which was included in the moderate category, then the results of the paired sample t-test obtained a Sig value. (2-tailed) of 0.000 which means <0.05. The conclusion was the 5E learning cycle model has a significant effect on junior high school students’ critical thinking skills in science learning and it can improve junior high school students' critical thinking skills in the moderate category.
Diarrhea diseases collectively constitute a serious public health challenge globally, especially as the leading cause of death in children. This study aims to identify the diversity of bacteria that cause diarrhea in children. This type of research is cross-sectional with a prospective descriptive approach. Sampling of 50 children with diarrhea in several health centers in Makassar City. The instrument used in this study was to use a list of questions related to the suitability of the desired sample and a descriptive chart of gram-negative bacteria and adapted to Bergey's Manual of Determinative Bacteriology to identify the bacteria obtained. The process of testing specimens with the culture method by isolation and inoculation of samples for further biochemical tests including Triple Sugar Iron Agar (TSIA), Indole Motility Sulfite (SIM), Methyl Red (MR), Vogas Proskauer (VP), and carbohydrates tests were carried out at the Microbiology Laboratory of Hasanuddin University Hospital. The results showed that the Escherichia coli bacteria were 15 (30%), Klebsiella sp as many as 14 (28%), Enterobacter sp as many as 12 (24%), Proteus mirabilis as much as 4 (8%), Proteus vulgaris as much as 4 (8%), and the bacteria Alcaligenes faecalis only 1 (2%). The conclusion of the study was that the most common type of bacteria found was Escherichia coli.
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