Medang lendir (Litsea glutinosa), a plant extensively utilized in traditional medicinal practices, offers valuable leaf extracts that serve as both a pain alleviator and a mild astringent, effectively treating conditions like diarrhea and dysentery. Numerous studies have underscored its significance by isolating and analyzing its secondary metabolites for bioactivity. The focus of this research…
The epiphytic fern Pyrrosia lanceolata is used as a folk medicine and is widely recognized for its efficacy by the general public. Isolating secondary metabolites and determining their activity are just two of the many successful studies that have been conducted. This research was conducted with the objectives of isolating and characterizing the pure compounds that obtained from the dichloromet…
MACOPF has been successfully synthesized using various amounts of NaOH as a precipitating agent. The activated carbon was derived from oil palm frond biomass carbonized at 600°C for 60 minutes, chemically activated using KOH with a charcoal to KOH weight ratio of 1:3, and calcined at 800°C for 30 minutes. The synthesis of MACOPF was carried out using the coprecipitation method, where activate…
Based on PISA data involving 81 countries, students' scientific literacy in Indonesia is ranked 68th in the PISA scientific proficiency measurement. To improve students' scientific literacy skills, it is necessary to develop assessment instruments in the form of scientific literacy instruments. Low scientific literacy among students will have an impact on students' ability to solve problems. Ac…
In the current era of globalization, science learning should be able to form a scientifically literate attitude in students who have the ability to think scientifically to be able to solve individual problems and issues in society so that they can act as good human resources. Students often find less than optimal learning resources in the form of innovative alternative media, as independent lea…
This research was motivated by chemistry learning problems related to the classroom. Additionally, students often face difficulties in solving problems when the question format deviates from the example solutions provided by the teacher. The purpose of this research is to analyze the effectiveness of an interactive engagement strategy assisted by Quizizz on students' critical thinking abilities…
This research aims to produce an e-module based on multiple representations to increase scientific literacy and students' learning independence in buffer solution material. The method used is the Research and Development (R&D) method, with the ADDIE model. Data collection techniques used interviews, student questionnaires, validation sheets, user response questionnaires, scientific literacy tes…
The various problems that exist in Indonesia today reflect the loss of national character values. The role of the school as a place for the formation of student character is considered important and has considerable influence. Teachers are required to be able to continue to develop themselves and be role models for students to form good character. The character of caring for the environment of …
This research aims to develop an instrument for assessing students' critical thinking abilities and science process skills on chemical equilibrium material that is valid and reliable and to determine the differences in the results of measuring students' critical thinking abilities and science process skills on chemical equilibrium material at high, medium and low schools. This research uses th…
The purpose of this research is to determine the increase in learning independence and media self-efficacy using media. This website is designed on elemental chemistry. Research into the development of web-based learning media on chemical element material hopes to provide real descriptions so that students are aware, for example, of the subject of making elements and the use of chemical element…
This research aims to find out the differences in conceptual understanding and critical thinking skills between students who are taught by guided inquiry learning with e-scaffolding and those who are taught by guided inquiry in terms of initial abilities in reaction rate material. The e-scaffolding contained in the guided inquiry step is used as assistance in the form of structured questions, c…
Pendidikan terus mengalami perkembangan dan sangat penting bagi kehidupan karena mampu menciptakan kualitas sumber daya manusia (SDM) yang mumpuni. Penelitian ini dilatarbelakangi oleh efikasi diri dan kemandirian belajar peserta didik dalam pembelajaran kimia di SMAN 15 Pekanbaru. Tingkatan efikasi diri dan kemandiran belajar peserta didik tidak terlihat dengan jelas selama proses pembelajaran…
Teknologi informasi dan komunikasi merupakan salah satu faktor pendukung yang tidak bisa dilepaskan dalam dunia pendidikan. Bahkan mutu pendidikan diukur melalui penyesuaian perkembangan teknologi informasi dan komunikasi di dalam segala proses yang ada salah satunya pada proses belajar mengajar. Keberhasilan suatu proses belajar mengajar pada hakikatnya terletak pada efisiensi peran seorang gu…
Kurikulum merdeka belajar adalah kurikulum yang menuntut peserta didik untuk memiliki kemandirian, yaitu tiap – tiap peserta didik diberikan kebebasan guna mengakses ilmu yang diperoleh dari pendidikan formal maupun non formal dalam mengembangkan potensi yang ada pada dirinya. Pada kurikulum merdeka, lebih menekankan pada pembentukan karakter peserta didik yang sesuai dengan profil pelajar Pa…
This research aims to determine the validity and user response to the development of an interactive e-module using Flip PDF Professional on chemical bond material for class X SMA/MA equivalent. The type of research used is Research and Development (R&D) with a modified ADDIE development model. The test subjects in this research were three chemistry teachers and twenty students who had studied c…
The purpose of this work is to ascertain how incubating a live culture and semipure laccase enzyme generated by a local isolate of Trichoderma asperellum LBKURCC1 from Riau, Indonesia, affects the biotransformation of the bromocresol purple (BCP) dye. Using a UV-Vis Spectrophotometer, absorbance of BCP was determined at 0, 3, 6, 9, and 24 hours at pH 5.2; 5.7, and 6.4 while the cultures were be…
This study aims to determine the improvement of the ICARE learning model in improving the cognitive learning outcomes of students in class XI MIPA at SMAN 1 Pekanbaru on the material of colloidal systems. Experimental research was conducted using pretest-posttest nonequivalent control group design, involving two classes as samples. The experimental class was treated with the ICARE learning mode…
Online learning that has not been implemented properly can affect learning outcomes and the absence of learning motivation from students during online learning can also affect learning outcomes. This study aims to determine the effect of online learning and learning motivation on student learning outcomes in chemistry class X SMA /MA equivalent. The type of research conducted in this study is e…
Learning is the process of interaction between teachers and students in educational institutions which aims to achieve the expected results, through educational interactions and the goals of knowledge, attitudes and skills. Teachers play an important role in learning by providing appropriate teaching materials. Current learning still prioritizes the role of the teacher and students' activities …
This research aims to produce valid phenomenon-based LKPD and get a positive response from users. The type of research is development research with research and development (R&D) design, with the development model being the Plomp development model. This research was carried out at the Chemistry Education Study Program, Faculty of Teacher Training and Education (FKIP), Riau University, Pekanbaru…