JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY)
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Published By Universitas Islam Kuantan Singingi

2656-1379, 2685-1776

2021 ◽  
Vol 3 (1) ◽  
pp. 4-10
Author(s):  
Ahmad Harianto ◽  
Elvi Yenti

This research aimed at developing chemistry education game of role playing game (RPG) based on the reaction rate material and to know product quality based on assessment of media, material experts and chemistry teacher subject.  This research used the research and development method which refers to development models from Borg and Gall.  The conclusion of this research was the chemistry education game of role playing game (RPG) on reaction rate based that was developed fulfills the criteria both of as a media learning chemistry independence.  The media expert gave good scores (75.00%), the material expert gave good scores (80.00%), the teachers gave very good scores (92.00%).  In the first filed try out, the students gave very good responses (92.10%).  The qualitative assessment was suggestions from validators, teachers and students who said that chemistry education game of role playing game (RPG) based on the material of the factors influencing reaction rate have been said good.


2021 ◽  
Vol 3 (1) ◽  
pp. 21-24
Author(s):  
Nur Ayna ◽  
Sunarwin Sunarwin ◽  
Magdalena Dhema

Problem solving abilities  is purpose to knows the injhuenca of using andro visual in cognitve increasing of student. This research implemented in SMA Negeri 1 Talibura on semester two mi periodof 2019/2020. The populasion of this research is all the student of SMA Negeri I Talibura where the sample of the research is the student of ten class mia which 51 student with is class of mia 1 and class mia II. The interpretation of the sample is using tehnigve. This research as aform , of transparant eksperiment type with the design. The tehinige of data collection sheert and test. This research using analysis data technigne,thent is normality test homogenenity test and t-test. Normality test data refers to the data tosttribube with normaly and homogenity that is the data is homogen. Based on hypothesis testing using the t-test shows that the value of tcount = 3.14, while ttable = 2.00. This shows that the value of tcount > ttable so that. it can be concluded that the audio visual media inflecaned to abblity of congnitive of the student of SMA Negeri I Talibura.


2021 ◽  
Vol 3 (1) ◽  
pp. 25-31
Author(s):  
Yuliana .Yuliana ◽  
Sunarwin Sunarwin ◽  
Kartini Rahman Nisa

The research aimed to know the effect of example non example model of students learning outcomes with acid base solution subject at theMAS At-Taqwa Beru in even semesterof the 2020-2021 academic year. Pre-experiment used as research method with one group pre-test post-test as the research design. The studyused population from students of class XI MIA MAS At-Taqwa Beru, and used purposif sampling method, so class XI MIA which are 18 students were a research sample. Data analysis using tcount test, and first, descriptive statistical analysis and data requirements testing. Data requirements test results, where the data is normal and homogeneous. Based on the testing of the hypothesis carried out, obtained tcount of 3,6920 and ttable of 1,6957. The results tcount> ttable, so H0 is rejected and H1 is accepted. The conclusion of this research was theexample non example model influenced student learning outcomes


2021 ◽  
Vol 3 (1) ◽  
pp. 11-20
Author(s):  
Ulfah Zahiroh ◽  
Pangoloan Soleman Ritonga

This research aimed at knowing the quality of test item derived from its validity, reliability, difficulty level, discriminator power, and distractor effectiveness. Quantitative descriptive method was used in this research. Interview and documentation were the techniques of collecting the data. The data source used was in evensemester exam questions that were in the forms of multiple-choice, student answer sheet, and answer key. Anates 4.0.9 program was to analyze the quality of test items. The research findings of the analysis of multiple-choice test item quality on semester final exam of Chemistry subject at the eleventh grade of State Islamic Senior High School 2 Kepulauan Meranti showed that in the validity analysis there were 6 valid test items (17%) and 29 non validitems (83%); in the reliability analysis it was obtained the reliability score 0.955; in the difficulty level analysis there were 12 easy test items (34%), 17 medium items (49%), and 6 hard items (17%); in the discriminator power analysis there were 4 very good test items (11.5%), a good item (3%), 19 items (54%) that should be revised, and 11 items (31.5%) that should be eliminated; in the distractor effectiveness there 26 very good options (19%), 10 good options (7%), 25 poor options (18%), 55 bad options (39%), and 24 very bad options (17%). Therefore, it could be concluded that the quality of test items could be stated bad.


2021 ◽  
Vol 3 (1) ◽  
pp. 1-3
Author(s):  
Asregi Asril ◽  
Rosa Murwindra ◽  
Jumriana Rahayu Ningsih

The identification of heavy metals Hg, Pb and Cd in the Batang Kuantan River, Kuantan Singingi Regency has been carried out successfully. Heavy metals are measured not only from their heavy metal content such as Hg, Pb and Cd but also from the pH level of the river flow itself. The research location is at the Batang Kuantan River, which is measured from 3 points. Changes in Data Observed / Measured are the quality levels of heavy metals in the waters. The research model used includes field research using survey and laboratory methods. The research design was analyzed using the Atomic Absorption Spectometer (AAS). The water sample was given HNO3 until it was acidic and filtered so that there was no sedimentation, then analyzed by AAS. Heavy metal analysis result data technique is compared with quality standard of government regulation no 82 of 2001 regarding water pollution control and water quality management. Pb did not have a problem because the levels were not found. Whereas for Cu and Cd in the category of concentration threshold for reasonableness, which ranged from 0.158-0.1598 ppm and 0.0233-0.2769 ppm.


2021 ◽  
Vol 3 (1) ◽  
pp. 32-37
Author(s):  
Dwi Putri Musdansi ◽  
Rosa Murwindra ◽  
Helbi Akbar

This research is a quantitative study that aims to analyze the effect of ethical judgment on student behavior at the Kuantan Singingi Islamic University (UNIKS). The population used was students of the Tarbiyah and Teaching Faculty (FTK) with the sampling technique. Random sampling used SPSS. Data collection techniques use secondary data sources and pimer, for independent variables using secondary data sources by directly requesting the FTK UNIKS archive center, while the dependent variable uses primary data sources obtained directly from the original source through the Behavior scale. The test statistic needed to test the hypothesis is the correlation coefficient between the test score as a predictor and the score of a criterion. The interpretation of the analysis results in predictive studies is based on the betha index (β) or the b score in the regression model obtained. From the results of the study it was concluded that there was an effect of ethical judgment on the behavior of FTK UNIKS students with sig = 0.00 and F = 50.524, Y = 31.5 + 0.645X


2020 ◽  
Vol 2 (2) ◽  
pp. 48-56
Author(s):  
Susi Susi ◽  
Elvi Yenti

This research was instigated by Chemistry subject at Senior High School of YLPI Pekanbaru that was dominated by discussion, question, and answer methods.  These methods did not train student ability in the inquiry, it was proven by the low score of student science process skill on Chemical Equilibrium lesson.  This research aimed at knowing the effectiveness of Problem Based Learning model toward student science process skill on Chemical Equilibrium lesson.  Quasi-experimental method was used in this research with pretest posttest control group design.  The samples were the eleventh-grade students of Natural Science 1 as the experimental group and the students of Natural Science 2 as the control group, and each class had 20 students.  Test and observation sheet were the instruments of this research.  The data of science process skill test were analyzed by using statistical test and to test the hypothesis was using t-test.  The calculation result data of the mean difference of both classes showed that the score of tobserved was 8.66 and ttable was 1.69 at 0.05 significant level, so tobserved was higher than ttable.  It showed that Alternative hypothesis was accepted, it meant that Problem Based Learning model was effective to be used toward student science process skill on Chemical Equilibrium lesson, and the effectiveness percentage score was 75%.


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