The ability of students to solve problems is still low, so an instrument for evaluating critical thinking using media is needed. This study aims to produce an evaluation instrument for critical thinking using the software iSpring QuizMaker on ion balance material and the pH of a valid salt solution according to material and media experts, knowing the validity, reliability, level of difficulty, …
The development of PQ4R-based electronic activity sheet on the subject of ionic equilibrium and pH of buffer solutions aims to develop a valid electronic activity sheet and determine user responses in learning. The research method used is the research and development (R&D) method by applying a 4D development model which includes Define, Design, Develop and Disseminate, pandemic conditions that …
Students' understanding of stoichiometric material can be seen from the average value of student learning outcomes at SMAN 5 Pekanbaru and SMAN 8 Pekanbaru which is still below the standard set by the school. This study aims to determine the types and causes of errors made by high school students in working on stoichiometry questions based on the Newman procedure. The form of research used by t…
This Research aims to develop an ICARE-based module on ion balance material and the pH of salt solutions. This development research uses a 4-D model (Define, Design, Develop, Disseminate). The research was only carried out until the develop stage and followed by user response testing. The data collection instruments used were in the form of validation sheets and user response questionnaires. Va…
This research aims to develop HOTS questions with wondershare quiz creator on ionic balance and pH buffer solution for class XI SMA/MA. The research method used is research development (R&D) with the Plomp model. The research used the Plomp model which was carried out in four stages are preliminary investigation, design, realization/construction, validation, test and revision and implementa…
This research is directed to develop e-worksheets based on contextual teaching and learning (CTL) using the Web Sway Office on acidic and alkaline materials as a valid teaching material and knowing the user's response to the developed e-worksheets. This type of the developed research is research and development using 4-D development model namely defines, designs, develops, and disseminates…
The purpose of this research is to know: (1) The process of activity sheet development based on Discovery Learning to improving students' critical thinking ability, (2) The validity of activity sheet is based on the application stages of Discovery Learning, the teacher's and students respond toward activity sheet based on Discovery Learning, that is developed for high school, (3) The students' …
The Creative Thinking Ability Assessment Instrument is a tool used to measure students' thinking skills based on available information data, find many possible answers to a problem or be able to find many ways to solve a problem. An assessment instrument will be developed according to indicators of creative thinking skills and integrated with hydrocarbon materials. Hydrocarbons are compounds de…
This development research aims to develop a LKPD based on the MEA Model on the subject of valid ion balance and pH of saline solution. This research is a development research (R&D) which refers to the 4D stage, but this research only reaches the Development stage. The research instruments used were validation sheets and user response questionnaires. The assessment on the validation sheet is giv…
The research that has been done is the Application of Problem Based Learning Model to Improve Concept Understanding and Confidence in Chemical Bonds Learning Materials in class X MIA 1 SMA Negeri 13 Pekanbaru. This research is motivated by the condition of the learning model in the field which is only centered on the teacher (teacher center) so that students do not play an active role in t…
This research aims to develop Student Activities Worksheet Based on Problem posing on the Stoichiometri material for grade X SMA/MA. Student Worksheet Based are designed according to the Problem Posing model contens. The type of this research is research and development (R and D) with reference to the development process of 4-D. The subject of this research is student activities worksheets base…
The ability of students in understanding the complex information and analyzing skills is classified as low grade, therefore a HOTS-based evaluation instrument is needed using media that is able to develop high thinking skills and increase the enthusiasm of students doing evaluations. The purpose of this study is producing an evaluation instrument based on HOTS using Quizizz on a valid thermoche…
This study aims to produce module approach based Science, Emvironment, Technology And Society on the subject of on ionic equilibrium and pH of buffer solutions .The method in this research is research and development using the 4D development model, which has four stages, namely define, design, development, and disseminate. Product validation is carried out by validator using a validation sheet.…
Development of Student Activity Worksheets (LKPD) Based on Multiple Representation on the subject of reaction rates is the development of teaching materials that prioritizes three levels of chemical representation, namely macroscopic, submicroscopic, and symbolic representations. This research aims to develop LKPD based on multiple representation learning models on the subject of reaction rates…
The objective of this research is to determine validity of the instrument four-tier multiple choice test based on aspects of language, concepts, and construction, determine characteristics of test instrument, find out students misconceptions, and determine responses of instrument four-tier multiple choice test. Type of research is R&D with an ADDIE development model. This research was carried o…
The role of technology in education is very important for helping to achieve learning goals, especially during a pandemic like now. This research aims to develop teaching materials in the form of an interactive electronic module or e-Module on the colligative properties of solutions using Sigil. The output of Sigil's products has an ePub format that is easily accessible both offline and online.…
The study is the development of an e-module as an effort to reduce the students' misconceptions on ion equilibrium and pH of salt solution for 11th grade of SMA/MA. This study is motivated by the teacher saying that the ion equilibrium and pH of the salt solution was one of the materials that were difficult for students to understand and often misconceptions occurred. The teacher used fewer med…
In general, experimental activities in schools have not focused on sustainable chemistry learning, because experiments were carried out using synthetic materials, although some of them used materials from the environment but only in small amounts. The research that has been carried out includes exploratory research. The object of this research is to focus on natural indicators of acid-base prac…
This study aims to (1) produce Android-based learning media on the subject of chemical bonds (2) determine the feasibility and practicality of the resulting learning media (3) determine the user's response to learning media, if used in the learning process. The method in this research is research and development using the ADDIE development model, which has five stages, namely analysis, design, …
In the all-technological era where technological growth is developing rapidly and dynamically, students are encouraged to be able to follow learning methods according to their times. The use of technology is one of the most important things in its use in the learning process. Therefore, educators must take an important role in conveying knowledge by utilizing technology such as android. This st…