Garuda - Garba Rujukan Digital

p-Index From 2019 - 2024

0.23

P-Index

This Author published in this journals

All Journal JURNAL EKSAKTA PENDIDIKAN (JEP) Jambura Journal of Educational Chemistry Sainstek : Jurnal Sains dan Teknologi

Bayharti Bayharti

Chemistry Department State University of Padang State University of Padang

Author-ID : 241612

Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Education Mathematics Physics Other

Published : 6 Documents Claim Missing Document

Claim Missing Document

Articles

Validitas Dan Praktikalitas Modul Reaksi Redoks dan Sel Elektrokimia Berbasis Guided Discovery Learning untuk SMA Yerimadesi, Yerimadesi; Bayharti, Bayharti; Oktavirayanti, Risa
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 2 No 1 (2018): JEP : Jurnal Eksakta Pendidikan
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Module based on guided discovery learning can be used as an alternative to improve studentâs activeness and understanding the concept. This research aims to develop redox reaction and electrochemical cell module based on guided discovery learning and reveals its validity and practicability. The type of this research is a development research using 4-D development model. The research instrument used was a questionnaire in the form of validity and practicality sheet. This module was validated by 3 UNP chemistry lecturers and 2 chemistry teachers of SMAN 10 Padang. Practicality test were conducted on 2 chemistry teachers and 32 twelfth grade students of SMAN 10 Padang. Data were analyzed by Cohenâs Kappa formula. The results of the validity test showed that the module has a very high validity category (k=0.83). Practicality test results by teachers and students showed that the module has high practicality category (k=0.79 and 0.80). Based on the results of this research, it can be concluded that the module developed was valid, 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

This classroom action research aimed to increase studentsâ 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 studentsâ 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 studentsâ 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.

Validitas dan Praktikalitas Modul Laju Reaksi Terintegrasi Eksperimen dan Keterampilan Proses Sains untuk Pembelajaran Kimia di SMA Andromeda, Andromeda; Ellizar, Ellizar; Iryani, Iryani; Bayharti, Bayharti; Yulmasari, Yofita
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 2 No 2 (2018): JEP: Jurnal Eksakta Pendidikan
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Modules are one of the learning materials that can be used in the learning process. Modules compiled based on guided inquiry learning syntax and integrating experimental activities that will be able to improve students science process skills. This study aimed to produce a reaction rate module based on guided inquiry integrated experiments and valid student science process skills and practical use in senior high school  chemistry learning. The type of this research was research and development (R & D) and the development model used was the 4-D model which consists of four stages: (1) define, (2) design, (3) development, (4) desseminate. This research was limited to the validity and practicality test. The validity test was carried out by 5 experts and limited trials to reveal the practicality done at SMAN 1 Lubuk Basung. The research instrument used was in the form of a validity and practicality questionnaire which was analyzed using kappa moment (k) Data analysis showed that the average moment of kappa validity was 0.84 with a very high validity category. The average practical kappa moments from teachers and students were respectively 0.83 and 0.85 with a very high practicality category. These results were also supported by the analysis of students answers in answering critical questions, exercises, prelab questions, postlab questions, and worksheets in modules, with an average value of 90.2. Based on the results of the study it can be concluded that the guided inquiry integrates experiments and science process skills on based reaction rate topic are valid and practical used for chemistry learning in senior high school.

Penggunaan Teknik Talking Chips pada Model Kooperatif Hasil Belajar dalam Pembelajaran Tata Nama Senyawa dan Persamaan Reaksi Kimia di SMAN 2 Pariaman Bayharti, Bayharti; Bahrizal, Bahrizal; Fitriani, Rahmi
Jambura Journal of Educational Chemistry Vol 12, No 1 (2017): Februari
Publisher : Jambura Journal of Educational Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (29.724 KB)

The goal of this study is to know the effect of using techniques talking chips on the cooperative learning in study of nomenclature of compounds and the chemical reaction at SMAN 2 Pariaman. The model used is a cooperative learning with talking chips technique that can improve students' learning activity. This research is a quasi-experimental research which design of Randomized Control Group Posttest Only Design. The population of this study were all students of class X SMAN 2 Pariaman. The sampling technique used was cluster sampling X.1 class is experimental and X.2 class is the control class. The data collection was done by administering tests at the end of the study. This research found that the average value of student score at experimental class is 76.33 and those of control class is 69.4. Both of these data are found normal and homogen. Data analysis used was t-test on a real level of 0.05 that obtained tcount = 2.605 and ttabel1.67. This means tcount> ttabel, and the research hypothesis is accepted. It can be concluded that there is a significant increase from the results of studying chemistry by using the technique of talking chips on the cooperative model in study of nomenclature of compounds and chemical equations.

Pengaruh Penggunaan Lembar Kerja Siswa (LKS) Eksperimen Laju Reaksi Berbasis Inkuiri Terbimbing Terhadap Hasil Belajar Siswa Kelas XI MIA SMAN 4 Padang Maida, Margarita Claudya; Bayharti, Bayharti; Andromeda, Andromeda
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 3 No 1 (2019): JEP : Jurnal Eksakta Pendidikan
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

This study aims to reveal the effect of using guided inquiry based experiment worksheet on reaction rate topic on students’ learning outcome. This research is a quasi-experimental research, using  randomized Posttest Only Control Group Design. The research sample consisted of two classes, namely the experiment class and control class obtained through cluster sampling technique. The population were students of class XI MIA SMAN 4 Padang as much as 6 classes, the academic year 2015/2016. Sample were class XI MIA 1 (experimental group) and class XI MIA 3 (control group). Learning outcome ware collected by tests at the end of the study. Data analysis showed that the experiments class learning with guided inquiry based experiment worksheet got learning outcome with average value of 86.27. Meanwhile learning outcomes of student in control class who learned without guided inquiry based experiment worksheet was 74.40. Both of Normality and Homogenous’s results showed that the distribution of the two experimental classes were normal and homogeneous. After the t-test on the real level of 0.05 was found that tcount is greater than ttable. It’s means that research hypothesis (H1) is accepted, so that it can be concluded that the results of student learning using student worksheet guided inquiry-based reaction rate is significantly higher than the student worksheet without a reaction rate-based guided inquiry.

PENGEMBANGAN MODUL KESETIMBANGAN KIMIA BERBASIS PENDEKATAN SAINTIFIK UNTUK KELAS XI SMA/MA Yerimadesi, Yerimadesi; Bayharti, Bayharti; Handayani, Fitri; Legi, Wiwit Fitrah
Sainstek : Jurnal Sains dan Teknologi Vol 8, No 1 (2016)
Publisher : IAIN Batusangkar

This developmental research aimed to produce scientific approach-based module in chemistry equilibrium topic, determine its validity, practicality, and effectiveness on grade XI students? learning outcome. It was based on 4-D development model that included defining, designing, and developing stage. Module was validated by expert and tested to senior high school (SMA) students. Research instruments used were questionnaire in the form of validity and practicality sheets and learning outcome test. Validity sheets were completed by 5 chemistry lecturers and 3 chemistry teachers. Practicality sheets were completed by 4 chemistry teachers and 25 grade XI students in public SMA (SMAN) 2 Batusangkar. Data were analyzed with Kappa Moment. The mean score of Kappa Moment for validity was 0.84 indicating a high degree of validity. The mean score of Kappa Moment for practicality were 0.87 (for students) and 0.84 (for teachers) indicating a very high degree of practicality. Effectiveness of the module was obtained from cognitive test score of students in SMAN 4 Padang. Analysis showed that the test score of students taught with module was siginificantly higher than that of students who were not. It can be concluded that the module developed was valid, practical, and effective for senior high school instruction.Key words: chemistry equilibrium, module, scientific approach.

Co-Authors Andromeda Andromeda Bahrizal Bahrizal Ellizar ellizar Fitri Handayani Fitriani, Rahmi Guspatni Guspatni Iryani Iryani Legi, Wiwit Fitrah Maida, Margarita Claudya Oktavirayanti, Risa Yerimadesi Yerimadesi Yulmasari, Yofita

Title

Found 6 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 6 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 6 Documents
Search