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A Simple Environment-Based Chemistry Lab Guide for High School Students Hardeli Hardeli; Fajriah Fajriah; Suryelita Suryelita; Bayharti Bayharti; Yeri Mardesi; Andromeda Andromeda
Pelita Eksakta Vol 4 No 2 (2021): Pelita Eksakta Vol. 4 No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol4-iss2/148

This research is to create a practical guide alternative based environment forsenior high school students and determine the validity, practicality, and effectivity level of the practical guide itself. The type of this research is Research and Development (R & D). The development model used in this research is the Plomp model which consists of three phases: preliminary research, prototyping phase, and assessment phase. The research instrumentis questionnaire of validity, practicality, and effectivity sheet. Practical guide alternative-based environment validated by 4 validators and tested to 17 students of class XII IPA 3 SMAN 1 Rambatan and 29 students of class XI IPA 4 SMA N 1 Kec. Guguak of the academic year 2017/2018. The moment kappa of validity was 0.79. The practicality level of the teacher's response questionnaire was 0.84. Based on the questionnaire of student response, the value of moment kappa is 0,77 in SMAN 1 Rambatanand and 0,90 in SMAN 1 Kec.Guguak with high category practicality for small group test and moment kappa value is 0,81 in SMAN 1 Rambatan and 0,84 in SMAN 1 Kec. guguak with the highest category practicality on the field test. The effectivity level of the teacher's response questionnaire was 0,89. Based on the questionnaire of student response, the value of momen kappa is 0,76. The results of the research can be concluded that the practical guide alternative based environmentfor senior high school students has a high validity category, highest practicality category, high effectivity category from students, and highest effectivity from teachers.

Efektivitas Permainan Scrabble Kimia sebagai Media Pembelajaran untuk Materi Sistem Koloid di SMA Yoga Saputra; Bayharti Bayharti
Edukimia Vol 3, No 1 (2021): Edukimia - Vol. 03, Issue 01
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ekj.v3.i1.a202

The study aims to reveal the effectiveness of chemistry scrabble game as a learning media for colloidal systems in senior high school. This research is a continuation of research from development research. This type research is quasi-experimental. The population was all students of XI IPA (even semester) 2019 till 2020 at senior high school (SMA N 1) Batang Kapas. This research used 2 classes, the sampling technique is a purposive sampling technique. This research instrument used were student learning outcome. N-Gain value of the experimental class 0.85 (high category) and control class 0,71 (high category), Based on results t-test obtained tcount = 2,77 and ttable = 1,67 it was the chemical scrabble game effectively improved learning outcomes with a high level.

Pengembangan Permainan Scrabble Kimia Sebagai Media Pembelajaran Materi Reaksi Reduksi dan Oksidasi Kelas X SMA atau MA Agnes Basa Prolina Silaban; Bayharti Bayharti
Edukimia Vol 3, No 1 (2021): Edukimia - Vol. 03, Issue 01
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ekj.v3.i1.a207

Scrabble chemistry game as a learning media is one of the alternative media in doing practice questions to strengthen students concepts in the reduction and oxidation reaction material. The purpose of this study was to develop a chemical scrabble game media as a learning medium on reduction and oxidation reaction material. Type of research is Research and Development (R and D) research with 4-D model, namely the stages of define, design, develop and disseminate. This research is limited to the develop stage by conducting a validity test. Data was collected using a validation questionnaire for UNP Chemistry lecturers and chemistry teachers at SMAN 12 Padang. The data analysis technique used the Aiken V formula. The results of the validity test were 0.84 with valid and it was concluded that the chemical scrabble game developed was valid.

Pengembangan Modul Laju Reaksi Berbasis Guided Discovery Learning untuk Kelas XI SMA atau MA Abdul Rohim Harahap; Bayharti Bayharti
Edukimia Vol 3, No 1 (2021): Edukimia - Vol. 03, Issue 01
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ekj.v3.i1.a223

The development and determination of module validity aims to examine the application of guided discovery learning model to the material reaction rate. The development was carried out using the plomp model with 3 stages, namely preliminary research, prototyping stage and assessment. The stages carried out are only up to the prototyping stage and formative evaluation until the expert review stage. Expert review is carried out through an assessment of 5 validators, namely 3 chemistry lectures and 2 chemistry teachers. Data were collected using a validity questionnaire which was then analysed the Aiken V formula. Based on the results, the resulting module has a valid category with a V value of 0,83 but its practicality has not been tested.

Pengembangan Permainan Scrabble Kimia sebagai Media Pembelajaran pada Materi Struktur Atom Kelas X SMA/MA Diana Mustika; Bayharti Bayharti
Edukimia Vol 1, No 1 (2019): Edukimia - Vol. 01, Issue 01
Publisher : Universitas Negeri Padang

Atomic structure is an abstract topic and contains factual knowledge, conceptual and procedural knowledge. While learning this chapter, students have to exercise more often. The learning media that had developed it this study can be use as exercising media for atomic structure topic. This study used Research and Development type with 4-D model, they are (1) Define, (2) Design, (3) Develop, (4) Disseminate. This research was limited only in third step (Develop) with validity and practicality tests of “Scrabble Kimia” as the final product. Validity test carried out by two chemistry lectures and two chemistry teachers. Practicality test carried out by two chemistry teachers and 29 students of SMAN 1 Batang Anai. This research used quetionaries as research instrument. Data Analyzing was using Kappa Cohen formula. The result of this study indicated that “Scrabble Kimia” for Atomic Structure topic has very high category of validity with 0.82 momen Kappa value. Practicality test showed that this media has very high categories with 0.96 momen Kappa value by teachers and 0.81 momen Kappa value by students. In conclution, the “ Scrabble Kimia” can be used as a learning media for atomic structure topic with very high categories of validity and practicality

Pengembangan Permainan Scrabble Kimia sebagai Media Pembelajaran pada Materi Minyak Bumi Kelas XI SMA Rahma Yuni Fadlah; Bayharti Bayharti
Edukimia Vol 1, No 2 (2019): Edukimia - Vol. 01, Issue 02
Publisher : Universitas Negeri Padang

This study was aimed to develop a game called Scrabble Kimia as a learning media in Petroleum topic for senior high school grade XI. This study used the research and development (R and D) type with the 4-D model. This 4-D model has four steps of research, they are define, design, develop, and disseminate. This study was limited only on validity and practicality tests. Data collecting was done by using questionnaires. Validity test used validation questionnaires by four experts, which is two chemistry lectures of the State University of Padang and two chemistry teachers of SMAN 1 Lengayang. Practicality test used practicality questionnaires by two chemistry teachers and 27 students of SMAN 1 Lengayang. Data analyzing used was kappa cohen formula. The result of this study showed that this media has 0,93 validity value with very high category of validity. The result of practicality by chemistry teachers has 0,88 practicality value with very high category of practicality, and practicality by students has 0,70 practicality value with high category of practicality. In conclusion, Scrabble Kimia that has been developed is valid and practice for using as a learning media in petroleum topic for senior high school grade XI.

Pengembangan Modul Hidrolisis Garam Berbasis Guided Discovery Learning Untuk Peserta Didik Kelas XI SMA atau MA Puti Ika Artika; Bayharti Bayharti
Edukimia Vol 3, No 1 (2021): Edukimia - Vol. 03, Issue 01
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ekj.v3.i1.a209

This research aims to develop and reveal the validity category of salt hydrolysis module based on guided discovery learning. The type of this research is a Research and Development (R and D). This research used Plomp model which consists of preliminary research, prototype, and assessment phases stage. This research is limited to the prototype stage that is prototype II. This module was validated by three lecturers from Chemistry Department FMIPA UNP and two chemistry teachers from SMAN 1 2X11 Kayutanam. The results of the validity test showed that the eligibility of module content has a category valid (V=0.87), linguistic component has a validity category moderate (V=0.8), serving component has a category valid (V=0.89), and graphic component has a category valid (V=0.85). It can be concluded that the module developed has a category valid with average V of 0.85.

Pengembangan Penuntun Praktikum Kimia Sederhana Materi Asam Basa untuk Kelas XI SMA/MA Reni Afreza; Bayharti Bayharti
Edukimia Vol 1, No 3 (2019): Edukimia - Vol. 01, Issue 03
Publisher : Universitas Negeri Padang

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

Validitas dan Praktikalitas Permainan Kartu Kimia (C-Card) pada Materi Sistem Koloid sebagai Media Pembelajaran kelas XI SMA/MA Aulia Zebina; Bayharti Bayharti
Edukimia Vol 2, No 1 (2020): Edukimia - Volume 02, Issue 01
Publisher : Universitas Negeri Padang

The purpose of the research to develop learning media for chemical card games (C-Card) on colloidal system materials for grade XI SMA / MA and determine the level of validity and practicality of the developed media. This research uses a 4-D model which consists of 4 stages, namely definition, design, development and dissemination. The resulting media was validated by two chemistry lecturers at the faculty of mathematics and natural sciences UNP and also by the two chemistry teachers at SMAN 1 Batang Anai. Through a validation questionnaire, the validation value of kappa moment obtained was 0.85 with a very high category and value of the practicality of teachers and students was 0,88 with very high categories an 0.80 with high categories. It can be concluded that the chemical card game media is valid and practical.

Peningkatan Aktivitas Menjawab dan Kualitas Jawaban Mahasiswa dengan Pertanyaan Prompting pada Mata Kuliah Strategi Pembelajaran Kimia Guspatni Guspatni; Andromeda Andromeda; Bayharti Bayharti
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 2 No 1 (2018): JEP : Jurnal Eksakta Pendidikan
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jep/vol2-iss1/128

This classroom action research aimed to increase students’ answering activity and quality of the answer to questions asked in Strategi Pembelajaran Kimia course. This research was done in two cycles each consisting of planning, action, observation, and reflection phases. Instruments used in this research were observation sheet and questionnaire. Prompting questions had been designed for each meeting. Primary action given was asking prompting questions in learning. Two observers did observation and lecture was recorded with camera. Observation data from observers and camera recording were analyzed descriptively to get percentage of students who answered question before and after prompting was given as well as to get percentage of keywords in the answer given by students. The result showed that students’ answering activity increased after prompting was given. The quality of the answer got better with prompting questions as well. The aid of visual media given in the next cycle showed that students dared to explain concepts they had not been familiar with. Other actions that increased students’ answering activity were time and reward givings. Data from questionnaire distributed at the end of the course showed that students like prompting questions because they could understand the question and concept asked and then find the answer.

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