The development of good learning resources on inquiry model with science literacy as a strategy to facilitate active has become trend in education.Critical thinking ability is needed build students competencies problem solving and discovery required learning.This study aims develop set material inquiry-based for the teaching Chemical kinetics that can improve students' critical skills achievement.The conducted through models literacy, standardization, implementation resource class.The was...

Moringa leaf is a plant that has many uses comes from the family Moringaceae and it tropical familiar to Indonesian people. Pharmacologically, this extract reported have antimicrobial fungicide rich in antioxidants. This metabolite compound contained leaves potential as an antioxidant, antibacterial, functional others. study aims determine simplicia characterization of secondary metabolites leaves, both powder extract. The method research experimental including making ethanol by maceration...

Cancer is a disease characterized by uncontrolled cell division and the ability of these cells to invade other biological tissues, either direct growth in adjacent tissues or migration distant sites. The purpose this study was determine class secondary metabolites contained ethanol extract cocoa leaves their cytotoxicity looking at LC50 value using Brine Shrimp Lethality Test (BSLT) method. This research includes phytochemical screening BSLT method number deaths Artemia salina leach larvae...

Information about score obtained from a test is often interpreted as an indicator of the student's ability level. This one weaknesses classical analysis that are unable to provide meaningful and fair information. The acquisition same if it comes item with different level difficulty, must show abilities. Analysis Rasch model will overcome this weakness. purpose study was analyze quality items by validating national chemistry exam instrument using model. research sample 212 new students...

The 21st century education system prioritizes students to have critical, creative, collaborative thinking skills and communication skills, including higher-order skills. This study aims develop online teaching materials for HOTS-based integrated General Chemistry courses using the ADDIE model improve students' higher order development research resulted in that were feasible effective improving Through media produced, are required trained be able think critically, creatively, analytically...

The ability to think creatively is one of the important goals at all levels education and must be owned by students after completing their studies university. This requires lecturers able develop design learning that actively involve students, train imp

This study aims to develop an initial ability test instrument based on science generic skills in the form of a scholastic and final chemistry evaluation topic thermochemistry as well find out validity content construction instrument. Research development research, with 4D model consisting 4 main stages, namely: Define, Design, Develop Disseminate, due time constraints this research was only up develop. The results by experts obtained average percentage material aspects, namely 87.08%,...

Keterbatasan pasokan air bersih untuk memenuhi kebutuhan masyarakat menjadi kendala utama yang dialami warga di Desa Sukajadi. Dengan keterbatasan pengetahuan, sarana, prasarana dan ekonomi, terus menggunakan tidak sehat rumah tangga. Oleh karena itu, sangat perlu diberi pengetahuan keterampilan pengolahan bersih. Kegiatan pengabdian kepada (PKM) dalam Pengolahan Air Bersih Sukajadi bertujuan untuk: 1) meningkatkan tentang budaya hidup bersih, 2) memberikan teknologi proses Tujuan tersebut...

This research was conducted at SMA Negeri 7 Medan on the Analysis of Relationship Between Mathematical Ability and Chemical Students' Chemistry Learning Outcomes in Equilibrium Material. The population this study were all students class XI MIPA as many classes. Sampling using purposive sampling technique. sample taken 2. instruments used consisted of: (1) mathematical ability test form multiple choice questions; (2) chemical analysis instrument essay (3) for chemistry learning outcomes is...

Innovation learning material with problem based approach is beliefed to be applicable improve students' competence as required by the Implementation of Indonesian National Qualifications Framework (Kerangka Kualifikasi Nasional Indonesia, KKNI) curriculum on teaching Physical Chemistry.This research aimed develop an innovative used a resources students Chemistry.The conducted in Department Chemistry Universitas Negeri Medan.The steps followed are including enriching chemistry Chemistry,...

Abstract This research is part of the development in solution chemistry-HOTS-Tawheed. The purpose this to develop instrument test Higher Order Thinking Skills (HOTS) based on Tawheed chemistry. stages began by designing 40 multiple choice item with five options. assessed science education experts. Expert judgement analysis was carried out using Rasch measurement model approach, facets software. Multi-rater validation results showed: (1) expert panels considered quality items 23 (57.5%); (2)...

These 21st century skills are not inborn skills, but acquired from experience. Therefore, educators must condition learning in such a way that all aspects of these can be trained, one which is by using digital learning. The specific objectives this study were to: (1) obtain mapping or analysis the needs Chemistry teachers integrating TPACK learning, (2) measure level ability (3) analyze developing models. based to develop students' abilities century. This research quasi-experimental adopting...

Learning is required to always be creative in presenting learning materials such as using models that can foster student’s enthusiasm participating process, so students are happy and interested exploring the lesson hope their outcomes will better. This study aims (1) determine increase student taught with Problem Based model based on critical thinking higher than Direct Instruction (2) find out whether there an influence of activities acid base material. From results study, it was found...

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar siswa dengan menerapkan model Discovery Learning (DL) pada pembelajaran termokimia. dilakukan di kelas XI IPA 9 MAN 2 Model Medan total sampel sebanyak 42 siswa. Metode penelitian yang dalam adalah Tindakan Kelas (PTK) terdiri dari siklus, masing-masing siklus kali pertemuan. Pokok bahasan dibahas Termokimia. Hasil diperoleh Pada I, nilai rata-rata sebesar 83,38 terendah 71 dan tertinggi 89. Jumlah telah mencapai Kriteria...

Abstract Teaching materials are one of the components for improving students’ scientific literacy skills, but teaching that exist today, especially about thermochemical do not yet have maximum content literacy. Through research design and development, literacy-based been developed in material. The stages include needs-analysis, product validation analysis. Therefore, result testing phase limited to effectiveness testing. From results study, it was found science-based general chemistry...

Penelitian ini bertujuan untuk mengetahui perbedaan peningkatkan hasil belajar siswa MAN 1 Stabat melalui penerapan model Problem Based Learning (PBL) berbantuan media audio visual dan laboratorium riil pada pokok bahasan Asam Basa. Metode yang digunakan dalam penelitian adalah eksperimen pengambilan sampel dilakukan secara random sampling. Hasil menunjukkan, kelas diperoleh nilai rata-rata tes awal sebesar 31,11 akhir 83,94, sementara 2 32,66 79,60. uji normalitas homogenitas menunjukkan...

The old pattern of practicum implementation has less impact on increasing students’ science process skills and critical thinking. Therefore, implementing with a semi-research been carried out by involving the lecturer laboratory assistant. subjects this research were 40 students in Universitas Negeri Medan. method is classroom action consisting two cycles. Each cycle includes planning, action, reflection, evaluation. Instrument’s observation sheet essay test. results descriptive data...

Abstrak : Ilmu kimia termasuk dalam rumpun sains dan merupakan salah satu cabang yang mencakup konsep, aturan, hukum, prinsip proses. Proses pembelajaran dapat menghasilkan manusia berkualitas dengan menunjukkan kesadaran keterampilan berpikir tingkat tinggi memunculkan sumber daya mampu kritis, kreatif, mengambil keputusan memecahkan masalah. Studi ini bertujuan untuk mengetahui pengaruh implementasi bahan ajar umum online terintegrasi media meningkatkan HOTS mahasiswa. Penelitian...

Module is structured to provide teaching materials that are in accordance with curriculum set by considering needs of students the learning process. This research a type Research and Development (R&D) aims develop discovery module on reaction rate material. refers steps Borg Gall which limited five stages. First stage begins data information collection, learning-based development planning, initial product development, field trials, revision test results. Modules have been developed will...

This research focused on the effect of learning models and emotional intelligence in students' chemistry outcomes reaction rate teaching topic. In order to achieve objectives research, with 2x2 factorial design was used. There were two factors tested, namely: (factor A), B) factors. Then, used; problem-based learning/PBL (A1), project-based learning/PjBL (A2). While, divided into higher lower types. The number population six classes containing 243 grade X students SMAN 10 Medan, Indonesia....

This study aimed to examine the difficulties that students encounter in comprehending fundamental concepts related atomic structure and chemical bonds Basic Chemistry course. Population from is student Department FMIPA Unimed 2022/2023. Determination of sample

This research aims to synthesize and characterize the complex compounds Hexathiocyanatoiron(II) [Fe(NCS)6] 4- Tetrapyridinedithiocyanatoiron(II) [Fe(NCS)2(Py)4]. The synthesis of these was conducted in Chemistry Laboratory, Faculty Mathematics Natural Sciences, Medan State University, while magnetic susceptibility measurements were carried out using Magnetic Susceptibility Balance (MSB) instrument Inorganic Bandung Institute Technology. compound involved reaction Iron(II) sulfate...

The aim of this research is to analyze students' needs for computational chemistry-based learning media on atomic structure and chemical bonding in the Basic Chemistry course. population study were first grade students Department, FMIPA Unimed. number samples was 93 from three classes. instruments used are multiple choice questions questionnaires determine mastery bonding. results show that average score 34.430 (poor category). achieved material 33.16 (very poor). lowest properties...

The reading and writing habits of SMAN 2 Percut Sei Tuan students are relatively low. Therefore, students' literacy high order thinking abilities also implementation scientific literacy-based learning strategies in the form making summaries at end process is expected to improve skills. instruments used tests varied multiple choices essays totaling 8 questions. results data analysis show that initial on 9 HOTs-Literacy indicators very low with an average value 28.49. summarizing treatment...