Perkembangan teknologi informasi dan komunikasi, berpengaruh juga terhadap kemaj uan i novasi media pembel aj aran. Makal ah i ni mengekspl orasi hasi l perencanaan, pembuatan dan implementasi modul virtual pembelajaran dasar teknik digital. Tujuannya adalah untuk menguji validitas produk sehingga memenuhi kelayakan sebagai media pembelajaran. Prosedur penelitian dilakukan melalui langkah-langkah penelitian pengembangan, dengan metode evaluatif. Hasi l penelitian membukti kan bahwa modul virtual i ni memi l i ki tampil an yang menari k, mudah di pahami dan mudah digunakan. Di harapkan hasi l pengembangan modul virtual i ni berdampak terhadap peni ngkatan penguasaan peserta didi k dal am mempelaj ari dasar tekni k digital.

The purpose of this study was to synthesize silica particles from rice straw waste using a simple extraction method. The experiment was conducted by heating and extracting rice straw waste into basic solution. To get silica particles, the extracted solution was then put into acid solution and heated to remove the remained solvent. The experimental results showed that the aggregated silica particles with sizes of about 200 nm were successfully produced. The XRD and FTIR analysis showed that the final product was silica and free of graphite. However, we found that some KCl component in the final product in which this was possibly from the use of KOH as the extraction agent. Therefore, further studies are still required to synthesize high purity silica particles from rice straw waste.

Implementasi kurikulum baru sangat menonjolkan pendekatan saintifik dengan pembelajaran berpusat pada peserta didik. Perancangan skenario pembelajaran berbasis pendekatan sai \nti fik memerlukan hasil riset implementasi di kelas. Penelitian bertujuan untuk mengembangkan rencana pelaksanaan pembelajaran elektronika dasar di Sekolah Menengah Kejuruan. Pengembangan rencana pelaksanaan pembelajaran bercirikan pembelajaran saintifik, mengadopsi pendekatan problem based learning. Metode yang digunakan pada penelitian ini yaitu metode pengungkapan pendapat dan observasi. Teknik pengumpulan data di lakukan dengan menggunakan angket, observasi dan wawancara. Penelitian ini menghasilkan RPP berbasis pendekatan saintifik melalui model problem based learning, dan mendapat tanggapan positif dari guru dan peserta didik, sehingga berdampak positif terhadap peningkatan hard dan soft skill peserta didik .

The assessment system generally requires transparency and objectivity to assess student performance in terms of abstraction. Fuzzy logic method has been used as one of the best methods to reduce this uncertainty. Therefore, we have conducted a literature review to examine the application of fuzzy logic in assessing the performance of different students. The Preferred Reporting Items for the Systematics Review and Meta-Analysis Method (PRISMA) were used as the basic method for conducting systematic reviews and meta-analyses. The articles reviewed were 38 articles from 2008 until 2018. All articles were classified based on the author, year of publication, type of journal or conference, sample size, context, data type, fuzzy technique, and basic findings. The results of this review show the positive effects of using fuzzy logic on student performance assessment. Overall, this review provides an appropriate reference for further research by identifying research needs in aspects of student performance assessment.