scholarly journals Pre-service Chemistry Teachers’ Understanding About Equilibria in Acid-Base Solutions

2021 ◽  
Vol 6 (4) ◽  
pp. em0110
Author(s):  
Nejla Gültepe
Keyword(s):  
Acid Base ◽  
Chemistry Teachers

scholarly journals Pengembangan Penuntun Praktikum Kimia Sederhana Materi Asam Basa untuk Kelas XI SMA/MA

EduKimia ◽  
2019 ◽  
Vol 1 (3) ◽  
pp. 73-78
Author(s):  
Reni Afreza ◽  
Bayharti Bayharti
Keyword(s):  
Research And Development ◽  
Research Data ◽  
Development Model ◽  
Acid Base ◽  
Chemistry Teachers ◽  
Base Materials ◽  
Simple Chemical

This research aims to develop a simple chemical practicum guide for acid-base materials, and deterine the level of validity and practicality of the practicum developed. This research includes research and development using the Plomp model. Plomp development model consists of several stage : preliminary or initial investigations, prototype stages and assessment stages. This research was validated by three chemistry lectures of FMIPA UNP and two chemistry teachers at SMAN 11 Solok Selatan. Analysis of research data obtained throught validation sheet. The result of validation have a kappa moment value of 0.84 and practicality value of 0.88 so, can be concluded that the guide developed is very valid and practical

scholarly journals Pengembangan Modul Kimia Berbasis REACT untuk Meningkatkan Keterampilan Berpikir Kritis Siswa Kelas XI IPA SMA/MA

2019 ◽  
Vol 3 (2) ◽  
pp. 142
Author(s):  
Fauzana Gazali ◽  
Nalia Rahyusri Ningsih
Keyword(s):  
Critical Thinking ◽  
Content Validity ◽  
Base Material ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Acid Base ◽  
Chemistry Teachers ◽  
Module Design ◽  
Materials Used ◽  
Very High

Teaching materials used by teachers in acid-base material have not been able to develop students' critical thinking skills. One solution that can be done to develop students' critical thinking skills is using acid-base module’s based on REACT (Relating, Experiencing, Applying, Cooperating, and Transferring). The aim of this research is to produce an acid base module based on REACT and reveal its validity and practicality. The type of research used is Research and Development (R&D) using the 4-D model. The module design has been assessed by seven validators who are Subject Matter Experts (SMEs) consisting of chemistry lecturers from FMIPA UNP and chemistry teachers. While the practicality test was conducted by 3 chemistry teachers and 26 students of class XI MIPA SMAN 1 Padang Panjang. Data analysis techniques in this study used the Content Validity Ratio (CVR) and Cohen's kappa formula. The module design produces three main characteristics, namely: the module is designed in accordance with the prior knowledge of students; the module contains the REACT syntax component; and the module contains aspects of critical thinking skills developed by Ennis. The results of the content validity obtained value of the Content Validity Index (CVI) of 0.90 with a valid category and the results of the construct validity obtained kappa moment of 0.92 with a very high validity category. While the module practicality results according to the teacher and students obtained a kappa moment of 0.86 with a very high practicality category. The conclusion from this study is that the module developed is valid and practical.

scholarly journals PENGEMBANGAN MEDIA PEMBELAJARAN ASAM BASA MENGGUNAKAN APLIKASI ANDROID BERBASIS CHEMISTRY TRIANGLE KELAS XI SMA/MA

2018 ◽  
Author(s):  
Annisa Rayhanny Jannah ◽  
Zul Afkar ◽  
Rahadian Zainul
Keyword(s):  
High School ◽  
Research And Development ◽  
Mean Value ◽  
Senior High School ◽  
Instructional Media ◽  
Acid Base ◽  
Chemistry Teachers ◽  
Android App ◽  
Very High

Abstract-The aims of the research are to produce instructional media on acid-base using android app based chemistry triangle which practical and valid. The study can be categorized as Research and Development. The development of instructional media was carried out by adapting 4-D (four D models). The instruments used were validity sheet and practicality sheet. The validity sheet was filled by 5 chemistry lecturers and 2 chemistry teachers. And the practicality sheet filled by 4 chemistry teachers and 26 students of SMA Adabiah Padang. The questionnaires were analyzed using Cohens’s kappa. The results of the validity, received mean value 0,83 and categories as "very high validity". The result of the practicality have mean value by the teachers 0,84 and by the students 0,88 and categories as "very high practicality". Based on the result can be concluded that instructional media on acid-base using android app based chemistry triangle of XI grade students in Senior High School very practical and valid to be used as a instructional media.

scholarly journals Analyze of Chemistry Teacher Profiles Using Technological Pedagogical Content Knowledge (TPACK) Framework

2019 ◽  
Author(s):  
Nur Tsalits Fahman Mughni
Keyword(s):  
Pedagogical Content Knowledge ◽  
Content Knowledge ◽  
Lesson Plan ◽  
Base Material ◽  
Teaching Experience ◽  
Acid Base ◽  
Learning Methods ◽  
Chemistry Teachers ◽  
Pedagogical Content ◽  
Qualitative Descriptive

This study aims to analyze the profile of technological pedagogical and content knowledge (TPACK) chemistry teachers at one of the schools in Jakarta. The criteria for the teachers analyzed are professional teachers who have been certified and have more than 20 years of teaching experience. The method used in this study is a qualitative descriptive research method. The data sources were collected through the TPACK questionnaire referring to the Schmid instrument (2009), lesson plan analysis, observation of the learning process, and interviews. The results show that chemistry teachers can apply learning methods that vary each meeting according to the characteristics of acid-base material. The teacher also utilizes technology information & communication (ICT) based learning media to simplify and clarify material delivery. It can be concluded that teachers have pedagogical content knowledge (PCK) and technological content knowledge (TCK). The use of ICT media such as interactive power points, videos and mobile phones to support selected learning methods, shows that teachers are also competent in technological pedagogical knowledge (TPK). The results of the study concluded that the teacher had integrated all TPACK components into acid-base learning.

scholarly journals PENGEMBANGAN MEDIA PEMBELAJARAN INDIKATOR ASAM BASA ALAMI BERBASIS BIOSELULOSA

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Fhany Maulika ◽  
Rizmahardian Ashari Kurniawan ◽  
Dedeh Kurniasih
Keyword(s):  
Data Collection ◽  
Learning Process ◽  
Sampling Technique ◽  
School Facilities ◽  
Indirect Communication ◽  
Acid Base ◽  
Chemistry Teachers ◽  
The Media ◽  
Analysis Design ◽  
Addie Model

This study was motivated by the absence of the practicum activities, especially the acid-base indicator learning media, in several schools such as SMA Adisucipto Sungai Raya, SMAN 2 Sungai Raya and MAS Al Mustaqim. This problem is caused by the limited school facilities. For this reason, learning media is required to facilitate the practicum class. This study aimed to determine the validity and practicality of Bioselulose-based natural acid base media. This study used an ADDIE model of four stages ; Analysis, Design, Develop, and Implementation. As many as ten Chemistry teachers from Senior High Schools in Kecamatan Sungai Raya participated in this study. The sample was selected by using purposive sampling technique, and the schools were chosen based on the availability of the material, accessibility of the location, and the school accreditation. Data collection techniques and tools used indirect communication, questionnaires and validation sheets. The results of the validity analysis showed that an average of 0.92 with a very valid category, which meanth that the media was suitable to be used in the learning process. The results of the practicality showed an average of 95 with a very practical category. Therefore, the Biocelullose-based natural acid base media was valid, practical, and suitable for the practicum class in schools.

scholarly journals Development of a Four-Tier Instrument of Acid-Base properties of salt Solution

2020 ◽  
Vol 4 (1) ◽  
pp. 51
Author(s):  
Habiddin Habiddin ◽  
Devita Novi Ameliana ◽  
Muhammad Su’aidy
Keyword(s):  
Salt Solution ◽  
Acid Base ◽  
School Students ◽  
Chemistry Teachers ◽  
Public Secondary School ◽  
Depth Analysis ◽  
Chemical Concepts ◽  
Valid Instrument ◽  
Development And Validation ◽  
Base Properties

Many chemistry teachers claimed that identifying students' understanding genuinely is challenging due to the limited time available, and the overload works faced. Therefore, constructing an efficient and valid instrument to overcome this difficulty is a must. This study is a part of the big project to produce a robust four-tier instrument to identify students' conception of acid-base properties of salt solution (FTI-ABPS2). The project involved six groups of researchers, and each group carried out the study in 6 different participant groups and schools. This paper outlines the development and validation of a four-tier instrument of Acid-Base properties of salt Solution involving public secondary school students in Malang Regency. The instrument was constructed using the procedure as carried out by Habiddin & Page (2019). Twenty-eight questions were constructed for the instrument. The results show that the instrument is valid and reliable to be implemented further. In-depth analysis regarding content validity, as well as the empirical validity of the instrument in light with the characteristic of chemical concepts (acid-base properties of salt solution in particular), is also discussed.

scholarly journals PENGEMBANGAN BUKU DIGITAL KIMIA PADA MATERI TITRASI ASAM BASA BERBASIS INKUIRI

2020 ◽  
Vol 5 (2) ◽  
pp. 55
Author(s):  
Petri Priyatni ◽  
M Rusdi ◽  
Muhammad Haris Effendi-Hasibuan
Keyword(s):  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Acid Base ◽  
Chemistry Teachers ◽  
Kappa Test ◽  
Digital Books ◽  
Acid Base Titration ◽  
Teachers And Students ◽  
Addie Model ◽  
The One

Analysis of the needs of teachers and students states that learning required teaching materials that utilized multimedia as a learning medium that could be accessed on cellphones (laptops) and laptops. This study is aimed to develop learning media in the form of inquiry-based digital chemistry books on acid-base titration material. This type of research is a research and development study using the ADDIE model. The subjects in this study were chemistry teachers and students of class XI Mipa 1 in SMA Plus N 2 Banyuasin III. The instruments used to collect data were in the form of questionnaires, interviews, and daily logs. From the results of media validation, material validation and learning design validation state that this digital chemistry book is suitable for use in acid-base titration material. The results of the assessment of two chemistry teachers on digital books were stated to be very good with the kappa test obtained a value of 0.814. In the one-on-one trial, it was 86.67% feasibility, and in the small-group trial it was 95%. Chemistry digital books on inquiry- based acid-base titration material are appropriate for use in chemistry learning and are expected to be applied in learning to improve students critical thinking skills.

scholarly journals BIMBINGAN PRAKTIKUM KIMIA UJI INDIKATOR ALAMI DI SMA NEGERI 1 SINGOSARI

2020 ◽  
Vol 4 (1) ◽  
pp. 76-86
Author(s):  
Nurin Fitriana
Keyword(s):  
Community Service ◽  
School Environment ◽  
Positive Response ◽  
Base Material ◽  
Learning Objectives ◽  
Learning Activities ◽  
Acid Base ◽  
Chemistry Teachers ◽  
Service Activity ◽  
Practical Guidance

Abstract: Practicum activities in learning Natural Sciences in the school environment is one of the effective methods to achieve learning objectives. Because in learning activities there are many concepts that can be explained if students carry out scientific activities or with laboratory tests. Singosari 1 High School is one of the high schools located on Jl. Ki Hajar Dewantara Singosari, Malang Regency. This community service activity aims to provide practical guidance to students in SMA Negeri 1 Singosari for Chemistry subjects. This is based on the results of interviews with chemistry teachers who showed that many students had difficulty in acid-base material. The method used needs analysis and is measured with quantitative data in the form of a tabulated questionnaire. The results of this service can be measured qualitatively and quantitatively, namely a questionnaire given to students that shows that there is a positive response and most feel very satisfied with the practicum activities undertaken. Students feel they can construct their understanding independently.   Keywords: Practicum, acid-base, IPA

scholarly journals Pengembangan E-Modul Asam Basa Berbasis Discovery Learning Untuk Kelas XI SMA/MA

2019 ◽  
Author(s):  
Trihanto Setiadi ◽  
Rahadian Zainul
Keyword(s):  
High School Students ◽  
Research And Development ◽  
Discovery Learning ◽  
Test Results ◽  
Acid Base ◽  
School Students ◽  
Chemistry Teachers ◽  
Stage Of Development ◽  
D Model ◽  
Very High

This research is aimed to develop the e-modul of acid base based of discovery learning.. The type of research used is research and development or Research and Development (R&D). The development model used is a 4-D model (four-D models) which consists of 4 stages, namely: define, design, develop and disseminate. This research is limited to the stage of development, namely the validity and practicality test. The research instrument used was a questionnaire of validity and practicality. The E-Module was validated by 5 validators while the practicality test was carried out by 3 chemistry teachers and 27 XI grade students of MIA SMA UNP Laboratorium UNP. Data from the validity and practicality test results were analyzed using the cohen kappa formula. Based on the results of the study, it was found that the average kappa moment of validity test was 0,953 with a very high validity category and the average kappa moment of teacher practicality was 0,921 and students were 0,883 with a very high practicality category. Thus, it was concluded that acid base e-module based on discovery learning was produced for valid and practical high school students.

scholarly journals Design and Trial of Electronic Smart Worksheets Based on POE (Predict, Observe, Explain) on Acid-Base Topic

2021 ◽  
Vol 6 (1) ◽  
pp. 51-61
Author(s):  
Yuni Fatisa ◽  
Endang Astuti Br Galingging
Keyword(s):  
Research And Development ◽  
Student Response ◽  
Learning Material ◽  
Acid Base ◽  
Chemistry Teachers ◽  
Development Stages ◽  
Media Design ◽  
Is Research ◽  
Three Stages

This research aims to produce and determine the feasibility of Predict, Observe, Explain (POE) based student electronic smart worksheet. The method used is research and development design. The development stages of this model consist of three stages: defining, designing, and developing. The research respondences were media design experts, learning material experts, chemistry teachers, and ten students. Instruments that used to validate and practical tests are questionnaires. Electronic smart worksheets are created using the articulate storyline application to develop the stages of POE learning. The validity of the worksheet in terms of media, material, practical, and student response results are 80% (valid), 97.14% (very valid), 96.81% (very practical), 89.61% (very practical), respectively. Based on these results, it could be concluded that POE based student electronic smart worksheet is suitable for use as an acid-base learning media.

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