This investigation aims to develop an interactive e-module chemistry magazine-based teaching material based on Kvisoft Flipbook Maker on thermochemistry for Senior High School grade XI/MA level. The research design is a development research (Research and Development) with Plomp’s model. The object of the research is the e-module inter-addictive chemistry magazine based on Kvisoft Flipbook Maker. The data instrument collection is a validation sheet form that is given to four validators and user response sheets to two chemistry subject teachers and 30 students of Senior High School grade XI focusing on Science Class. The data analysis technique is by calculated the percentage score of the validation assessment and user response. The results revealed that the developed e-module interactive chemistry magazine based on Kvisoft Flipbook Maker filled out the valid criteria by the material validators based on content substance assessment aspect with a percentage 88.89% and learning design 97.22% and by the media validators based on display (visual communication) with a percentage96.88% and software utilization 100%. While the User responses based on the teachers' and students’ responses were in very good criteria with each score 92.61% and 86.80%.

This article details an investigation on the mechanism of corrosion inhibition of mild steel using amylose-acetate-blended carboxymethyl chitosan (AA-CMCh) in acidic media in the context of kinetic and thermodynamic parameters. The surface of mild steel was exposed to test solutions and evaluated using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The activation energy (Ea), free energy of adsorption (ΔG), enthalpy of activation (ΔHads), and entropy of activation (ΔSads) were determined in order to elucidate the mechanism of corrosion inhibition. The results confirmed that AA could be improved using CMCh as a corrosion inhibitor. The corrosion rate decreased from 1109.00 to 229.70 mdd (79.29%), while corrosion inhibition increased from 35.13 to 89.72%. Sulfate acid (H2SO4) of 0.25 M also helped in decreasing the corrosion rate from 2664.4 to 1041.67 mdd (60.9%) while also in increasing corrosion inhibition from 56.94 to 68.31%. The calculated values for ΔG, ΔHads, and ΔSads were −33.22 kJ·mol−1, −48.56 kJ·mol−1, and 0.0495 kJ·mol−1·K−1, respectively. The mechanism of corrosion inhibition of mild steel in the acidic condition is dominated and precipitated by the formation of the Fe-chelate compound, which was confirmed by the SEM/EDS spectrum. The reactions were spontaneous, exothermic, and irregular and takes place on the surface of mild steel.

The research aims to develop interactive multimedia based Lectora Inspire on science chemistry subjects for SMP/MTs. The research method using the design of research and development (Research and Development) with a model Plomp, which consists of four phases; initial investigation, design, realization and construction, and validation, test and revision. The research was conducted at the University of Riau FKIP. The object of research is interactive multimedia Lectora Inspire. Data collected by validating based interactive multimedia Lectora Inspire to 3 validator (media expert and subject matter experts) and limited trial by users that teachers and students in SMP 4 and SMP Babussalam Pekanbaru. The results showed an average score of validator 98.20% . Score of limited trial based on questionnaire responses of teachers and students each obtained an average score of 98.78% and 97.03%. From the result of the average score of the validation and limited trial of interactive multimedia based Lectora Inspire for chemistry subjects for SMP / MTs valid and can be used as a learning media.

Kompetensi yang dibutuhkan di era Industri 4.0 salah satunya adalah literasi digital. Literasi digital adalah kemampuan menggunakan teknologi informasi dan komunikasi (TIK) untuk mendapatkan informasi dan memilahnya. Kemampuan TIK guru di Kecamatan Pangkalan Kuras Kabupaten Pelalawan sudah cukup baik. Indikasinya adalah sebagian besar guru telah bisa menggunakan media sosial yang diakses melalui smartphone dan netbook pribadi.  Namun, kemampuan ini belum dimanfaatkan untuk menerapkan proses pembelajaran berbasis digital di kelas. Hal ini disebabkan guru masih memiliki keterbatasan menggunakan smartphone atau netbook sebagai media pembelajaran online. Program Studi Pendidikan Kimia Universitas Riau menawarkan pelatihan pembuatan media pembelajaran digital berbasis Socrative untuk guru di Kecamatan Pangkalan Kuras sebagai sebagai salah satu kegiatan pengabdian kepada masyarakat. Guru antusias dalam mengikuti pelatihan yang diadakan. Sebagian guru mampu  menerapkan pembelajaran berbasis Socrative di kelas. Sedangkan sebagian lagi, tidak bisa menerapkan pembelajaran berbasis digital di kelas karena minimnya siswa yang mempunyai smartphone serta adanya peraturan sekolah yang tidak membolehkan siswa menggunakan smartphone di sekolah.

This research is an innovation in the development of teaching materials that adapt 21st century learning, which focuses on the implementation of the development of science and technology. Therefore can be use to integrate of science technology based learning to improve the quality of individual competencies in accordance with the 2013 curriculum. The purpose is to produce integrated STEM E-modul on Acid Base Material. The research instruments were validation sheets and user response questionnaires. Validation has been assessed by the validator team with aspects of content, language, presentation, STEM and graphics. The trial was conducted at four high schools in Pekanbaru. The results percentage of the validation data considered as very valid. While the percentage of graphic aspects and software utilization considered as very valid. Then the percentage of the teacher response questionnaire considered as very good. The research results from the development of an integrated acid-base STEM e-module with 3D Pageflip Professional show that the e-module developed is feasible and valid to increase the involvement of students active roles, especially to train students scientific attitudes, interests and motivation.