In Indonesia, STEM education has been implemented in the learning process since 2014. The number of researches on the implementation of STEM education are increasing from year to year. Therefore, this research was conducted to map the all articles published online with the theme of STEM education implementation in Indonesia. The scoping review was carried out following the framework from Arksey & O'Malley (2005), with the following steps: (1) formulating research questions, (2) exploring research results on Google Scholar database from 2015-2020 with the keyword “implementation” + "STEM education" + “Indonesia”, (3) sorting the collected articles with predetermined criteria and selecting them according to the PRISMA model, (4) discussion, and (5) conclusion. Found 597 articles that match to these keywords and 154 articles that meet the criteria as research data. The results showed that the STEM education is implemented as a learning strategy and approach, integrated with other learning models, used as a learning assessment, and developed into teaching materials, modules, and learning media. Additionally, teachers implement STEM to improve entrepreneurship skills, learning motivation, and various 21st-century skills in their students. Furthermore, research on STEM has been conducted in 19 provinces in Indonesia, which are dominated by West Java and East Java provinces. Beside that, the STEM education has been studied at all levels of education and high school is the most widely used research subject and STEM education has grown in small units and has proven to be capable of developing many student skills. The implementation of STEM education can be a trigger for renewal in the world of education.

Penelitian ini bertujuan untuk menghasilkan bahan ajar asam-basa menggunakan konteks bahan pengawet makanan yang dapat mengembangkan kemampuan literasi sains siswa SMK jurusan Teknologi Pengolahan Hasil Pertanian (TPHP) serta mengevaluasi kualitas bahan ajar tersebut berdasarkan validasi ahli, pengujian keterbacaan, dan penilaian guru. Penelitian dimulai dengan pembuatan bahan ajar dengan pendekatan STL (Scientific Literacy and Technology) kemudian disempurnakan dengan metode validasi dan pengembangan. Validasi yang digunakan pada penelitian ini meliputi validasi ahli. Selain itu, bahan ajar juga melalui pengujian keterbacaan dan penilaian guru. Hasil penelitian menunjukkan bahwa empat dimensi sains tertuang dalam bahan ajar, nilai CVR dan CVI menunjukkan bahwa bahan ajar sangat sesuai digunakan dalam pembelajaran baik dalam pembelajaran kimia adaptif maupun pembelajaran mata pelajaran produktif TPHP materi bahan tambahan makanan, persentase total keterbacaan 75,3 % menunjukkan bahwa bahan ajar dapat digunakan untuk siswa SMK Jurusan TPHP karena mudah untuk dipahami dan termasuk bahan ajar yang baik sekali merujuk pada hasil persentase penilaian guru sebesar 98%. Kekuatan bahan ajar terletak pada aspek visualisasi (kalimat, ukuran huruf, jenis huruf, tampilan gambar) dan aspek ketertarikan siswa dalam mempelajari materi produktif TPHP, sedangkan kelemahan bahan ajar terletak pada aspek ketertarikan siswa dalam mempelajari materi kimia.Kata Kunci: bahan ajar, literasi sains, validasi ahli, pengujian keterbacaan, penilaian guru

Paper is a tangible item of thin sheets which can be torn, rolled, folded, glued and crossed out. Paper is made to meet the needs of a very diverse life. The paper industry is one of the forest products industries which has a very important role in human life. There is almost no human activity that does not utilize this industrial commodity. In the process of making paper, in addition to the availability of Raw Materials there is also the use of additives. Additives are ingredients that are added to obtain certain desired characteristics of paper products. Some factors that influence the process of making paper are raw material, machine cleanliness, machine performance, human factors and additives. Additives are the main factors that influence the success of the papermaking process. There are two types of additives used in Paper Machine 12 PT.X-Karawang, namely functional additives and controlling additives. The effect of the addition of additives on Paper Machine 12 PT.X-Karawang namely, Dry Strength can increase the strength of the paper when used in dry conditions, Sizing Agent (Internal Sizing) functions to control liquid penetration, Surface Sizing Agent (Surface Sizing) functions to level the surface of the paper, Filler as filler, Dyes can give color to paper, OBA serves to increase the brightness of paper, Biocide functions to inhibit bacterial growth, Defoamer functions to prevent foam formation and Retention Aid can increase fiber retention.Keyword: Controlling Additives, Functional Additives, Paper, Paper Machine

The efficiency of biodiesel production from vegetable oils needs to be developed. The process of transesterification using heterogeneous catalysts has been widely studied to replace the role of homogeneous catalysts. The use of BaO promoters into metal oxides increases the activity of heterogeneous catalysts in transesterification reactions. This study was conducted to provide information about the effect of BaO concentrations that are filtered into calcium oxide (CaO) on the transesterification reaction of tofu pulp oil into methyl ester using electrocatalytic methods. The study was conducted at room temperature with a voltage of 18.5 Volts and a reaction time of 120 minutes. Methanol ratio: tofu oil is used at 10:1 with Tetra Hydro Furan (THF) as a co-solvent. The electrocatalytic process is carried out using graphite electrodes. The research variables are the concentration of BaO promoters used at 2%, 4%, and 8%. The parameter of the test is methyl ester content obtained from the results of transesterification reactions with chromatography gas analysis (GC-MS). In this study, the BaO/CaO catalyst was impregnated by wet method and calcined at 450oC for 180 minutes. From the experiments conducted the highest methyl ester yield was obtained in bao / cao catalyst 2% with a yield of 99.99% and biodiesel yield of 94%.

PT DyStar Colours Indonesia, merupakan salah satu pabrik penghasil zat warna tekstil terbesar di Indonesia kapasitas produksi 33 Ton/hari, 1000 Ton/bulan dan 12000 ton/ tahun. Begitupun limbah yang dihasilkan pada semua unit sintesis merupakan penghasil limbah terbanyak yaitu sekitar 9-10 ton/hari, pada unit milling limbah yang dihasilkan sekitar 6ton/hari dan unit draying limbah yang dihasilkan sekitar 5 ton/hari. Limbah Cair Pond C-304 adalah limbah buangan dari semua unit proses, biasanya limbah diberikan kepada pihak ke tiga untuk dilakukan pengolahan limbah oleh perusahaan tersebut, namun saat ini PT DyStar Colours Indonesia berencana membangun unit pengolahan limbah yang bertujuan untuk mengubah air limbah menjadi air prosess.Berkenaan dengan hal tersebut maka diperlukan penelitian skala laboratorium dimana dilakukan lima tahap perlakukan atas sampel limbah pond C-304. Lima tahap perlakuan tersebut meliputi tahap pengenceran sampel, tahap koagulasi, tahap flokulasi, tahap penyaringan, dan tahap adsorbsi. Sampel disiapkan yaitu sampel 1 (100 : 700) dan sampel 2 (100 :800). Dimana pada tahap penyaringan dibedakan dengan mengunakan penyaring berupa Pasir silika GB 1, Pasir silika GB 2, dan karbon aktif. Berdasarkan penelitian yang telah dilakukan maka Pada sampel 1 (100 : 700) dan sampel 2 (100 : 800), adsorben paling efektif adalah karbon aktif, karena nilai pH yang dihasilkan lebih netral, nilai Solid Content dan Conductivity lebih kecil daripada pasir silika GB 1 dan GB 2. Bila dibandingkan penggunaan pasir silika maka lebih efektif dengan menggunakan pasir silika GB 1 karena dilihat dari Solid Content nya yang lebih rendah di banding pasir silika GB 2.