scholarly journals Pengembangan LKS dengan Pendekatan Saintifik Berbasis Discovery Learning Pada Materi Hukum Dasar Kimia untuk Pembelajaran Kelas X SMA/MA

2018 ◽  
Author(s):  
Ikhwan Chairi ◽  
Ellizar ◽  
Rahadian Zainul

The purpose of this research are to develop a Student Activity Sheet on discovery-based learning of Basics Laws of Chemistry and test the validity and practicality of LKS produced. This type of research is the Research and Development (R & D). Development models used in this study is a four D models, namely (1) define , (2) design , (3) develop and (4) disseminate. This study is limited to the development stage. The instrument used in this research is the questionnaire of validity and practicalities. LKS developed validated by 7 people validator, consisting of five chemistry lecturers and two chemistry teachers. Practicality test carried by four chemistry teachers and several X grade students of MAN 3 Padang. Based on the research that has been conducted, the product produced Student Activity Sheet discovery-based learning for material Basics Laws of Chemistry that its validity and practicality had been examined. LKS produced has an average value of 0.90 with the validity of the category of very high validity, average of teachers practicality is 0.85 with very high practicality categories and average of students practicality is 0.72 with high practicality category.

EduKimia ◽  
2020 ◽  
Vol 2 (2) ◽  
pp. 79-84
Author(s):  
Visca Alisia Arianti ◽  
Rahadian Zainul

This research aims to develop teaching materials in the form of e-modules that are valid and practical. The type of research used is research and development (RD). The development model used is the 4-D model which includes 4 stages, namely the define, design, develop and disseminate. Research carried out until the development stage, namely the validity and practicality test. The instruments used were validity and practicality sheets. The e-module was validated by 6 validators, while the practicality test was conducted by 3 chemistry teachers and 30 students XI MIA 6 of SMAN 5 Padang. The results of the validity and practicality analysis showed a validity value of 0.840 with a very high category. The practicality value by students is 0.920 and the teacher is 0.841  with a very high category. Thus, e-module based on discovery learning on electrolyte and non-electrolyte solution materials in class X SMA / MA is valid and practical.


2019 ◽  
Author(s):  
Trihanto Setiadi ◽  
Rahadian Zainul

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.


2018 ◽  
Author(s):  
Pobby Sepriandi ◽  
Ellizar ◽  
Rahadian Zainul

A research has been done to develop student worksheet with scientific approach and discovery based learning in Acids and Bases topic to learn chemistry for grade XI senior high school and also to describe it’s validity and practicallities. The research used Research and Development (R&D) method. The model has been used is 4-D model, which consisted of define, design, develop and disseminate. Instruments of this research is questionnaire which consisted of validation sheet and practically sheet. Validity sheet was given to 4 chemistry lecturers and 2 senior high school chemistry teachers while practicallities sheet was given to 3 chemistry teachers and 25 students from SMAN 12 Padang. Based on the research, student worksheet product has been developed with scientific approach and discovery based learning in Acids and Bases topic for grade XI senior High School. The average value of validity is 0,92 which very high validity category while the average value of practicallities is 0,82 which very high practicallities category. Based on the data, it can be seen that the student worksheet on Acids and Bases topic with scientific approach and discovery based learning for grade X senior high school has very high validity level and very high practicallities level.


EduKimia ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 6-11
Author(s):  
Agil Aditya Dinata ◽  
Rahadian Zainul

The purpose of this study is to produce a discovery learning based e-module on buffer solution topic for Class XI Senior High School (SMA/MA). The type of research used is Research and Development using 4-D models with 4 stages, namely: (1) define, (2) design, (3) develop and (4) disseminate. This e-module was validated by 2 Chemistry lecturer from FMIPA UNP and 3 Chemistry teachers at Pertiwi 1 Padang High School, while the practicality test was carried out by 2 chemistry teachers and 26 students of class XII MIA SMA Pertiwi 1 Padang. The validity and practicality data were analysed using the kappa cohen formula, the validity was 0.92 very high and the practicality of teachers and students was 0.94 and 0.83 very high. The data proves that the Buffer Solution e-module can be said to be valid and practical


EduKimia ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 51-56
Author(s):  
Kurniati Kurniati

This research aims to create and develop a game called halmakimia which can be used as a learning medium in the electron configuration material for class X MA/SMA. This study uses the type of Research and Development (RD) with the 4D model. This model has 4 stages of research namely define, design, development, and disseminate. This study conducted a validity test and practicality test from the development stage. Halmakimia learning media is validated by 3 validators from the MAN 2 Bukittinggi chemistry teacher. The practicality questionnaire was filled by 33 student  class  X MAN 2 Bukittinggi and 2 chemistry teachers MAN 2 Bukittinggi. The results showed the validity test was 0.85 categorized very high. The kappa moment of 33 students MAN 2 Bukittinggi was 0.7 in the high practicality category, and MAN 2 Bukittinggi teachers were 0.83 in the very high category.


2021 ◽  
Vol 2 (2) ◽  
pp. 45-54
Author(s):  
Wildayati Wildayati ◽  
Yerimadesi Yerimadesi

This study aims to analyze the validity and practicality of the e-module being developed. This type of research is research and development (RD) with the Plomp development model. The e-module validity test was conducted by four lecturers from the Department of Chemistry, Faculty of Mathematics and Natural Sciences, UNP and three chemistry teachers. The practicality test was carried out by three chemistry teachers and 32 grade XI students of SMAN 7 Padang for the 2020/2021 school year. The research instrument used was a validity questionnaire and practicality. The validity results were analyzed using the Content Validity Ratio (CVR) and the practical results used the Aikens'V formula. From the research, it was found that the CVR average value of the e-module content validity was 0,95 (valid), the construct validity was 0,82 (valid), the practicality of the e-module for the teacher was 0,89 (practical) and for the students was 0,82 ( practical). Based on the results of the study, it was concluded that the e-module of electrolyte and non-electrolyte solutions based on guided disscovery learning for class X SMA / MA developed was valid and practical. Penelitian ini bertujuan untuk menganalisis validitas dan praktikalitas dari e-modul yang dikembangkan. Jenis penelitian adalah Research and Development (RD) dengan model pengembangan Plomp. Uji validitas e-modul dilakukan oleh empat dosen jurusan kimia FMIPA UNP  serta tiga guru kimia. Uji praktikalitas dilakukan oleh tiga guru kimia dan 32 siswa kelas XI SMAN 7 Padang tahun ajaran 2020/2021. Instrumen penelitian yang digunakan angket validitas dan  praktikalitas. Hasil validitas dianalisis menggunakan Content Validity Ratio (CVR) dan hasil praktikalitas menggunakan formula Aikens’V. Dari penelitian didapatkan hasil nilai rata-rata CVR validitas konten e-modul sebesar 0,95 (valid), validitas konstruk 0,82 (valid), praktikalitas e-modul pada guru 0,89 (praktis) dan pada siswa 0,82 (praktis). Berdasarkan hasil penelitian disimpulkan bahwa e-modul larutan elektrolit dan non elektrolit berbasis guided disscovery learning untuk kelas X SMA/ MA yang dikembangkan telah valid dan praktis.


EduKimia ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 87-93
Author(s):  
Azizah Arta ◽  
Minda Azhar

LKPD are one of the learning materials that can be used in the learning process. Buffer solution LKPD based on guided discovery learning with three levels chemistry representation. The type of this research was Research and Development (RD) with the 4D development model. 4-D models that consist of four steps: define, design, develop, and disseminate. The research was limited on develop step. The research instrument that used questionnaire in the form of validity and practicality sheet. The LKPD was validated by three UNP chemistry lectures and two chemistry teachers of SMAN 5 Padang. The LKPD was practicalited by two chemistry teachers and 28 students XII MIPA 1 of SMAN 5 Padang. Data were analyzed by Cohen’s Kappa formula. The result of validity test showed that the LKPD had a very high validity category (k= 0,86). Practicality test result showed that the LKPD has very high practicality category ( k= 0,80 dan k=0,82). The LKPD was valid and practical.


EduKimia ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 9-15
Author(s):  
Wely Pramunando ◽  
Yerimadesi Yerimadesi

This research aim to develop a guided discovery learning based chemical bonding module for grade X SMA and determine the level of validity and practicality. The type of this research was Research and Development using Plomp model. Plomp model consist of three stages, 1) preliminary research; 2) prototyping stage and 3) assessment stage. The validity test of this module was done by two chemistry lecturers at FMIPA UNP, two chemistry teachers at SMAN 3 Padang Panjang and a chemistry teacher at SMAN 4 Pariaman. Practicality test was done by two chemistry teachers at SMAN 3 Padang Panjang and 27 students XI MIPA 1 of SMAN 3 Padang Panjang using. Validty instrument and practical questionnaires was analized by Cohen Kappa (k) Formula. The results of the analysis of the validity with an avarage score of the kappa moment 0,91 which is very high category of validity. The results of practicality by teacher and students show that the average score in a row is 0,95 and 0,87 which is very high practicality category. The data obtained show that guided discovery learning based chemical bonding module for grade X SMA produced is valid and practice


EduKimia ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 53-60
Author(s):  
Rosi Efliana ◽  
Minda Azhar

Learner Worksheet (LKPD) of reaction rates based structured inquiry in class XI SMA had been dertemine validity and practicality. The type of research used is Research and Development (RD). The development model was a 4-D model consisting of 4 stages, namely (1) Define, (2) Design, (3) Develop, (4) Desseminate. The disseminate stage was not carried out due to time and cost constraints. The research instrument used was a questionnaire validation and practicality questionnaire. The validation questionnaire was filled by 3 chemistry lecturers from FMIPA UNP and 2 chemistry teachers from SMAN 2 Lubuk Basung. Practicality questionnaire was filled by 2 chemistry teachers and 30 students of class XII MIPA 3 SMAN 2 Lubuk Basung. Data were analyzed using kappa moments. The average kappa moment of validity test was 0.87 with a very high validity category. The average kappa moment of teacher were 0,88 with a very high practicality category. The average kappa moment of student were 0,87 with a very high practicality category. Thus, it was concluded that reaction rates LKPD based on structured inquiry was valid and practice.


Jurnal PGSD ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 146-154
Author(s):  
Victoria Karjiyati

This research aims to improve the activities and results of learning mathematics using the discovery learning model. This type of research is a classroom action research conducted in two cycles. Subjects of this study was grade III B SDIT Generasi Rabbani Bengukulu. The data collection instrument used student activity observation sheets and learning outcomes tests. The data analysis technique uses arithmetic mean and the percentage of learning completeness. The results showed: 1) Teacher activity in the first cycle obtained an average of 3.38 and in the second cycle an average of 3.81, 2) Student activity in the first cycle obtained an average of 3.13 and in the second cycle an average of 3.67, 3) Learning result in the first cycle were obtained an average of 71.43 with learning completeness 64.29 %, an increase in the second cycle obtained an average value of 76.79 with 82.14% completeness learning. The conclusion of this study that the use of the discovery learning model can increase the activity and learning result of class III B students of SDIT Generasi Rabbani, Bengkulu City


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