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JCER (Journal of Chemistry Education Research)
Published by Universitas Negeri Surabaya
ISSN : -     EISSN : 25491644     DOI : -
Core Subject : Science, Education, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Education
JCER (Journal of Chemistry Education Research) adalah jurnal peer-reviewed yang secara periodik terbit 2 (dua) kali setahun pada bulan Juni dan Desember dengan jumlah 5–8 artikel setiap kali terbit. JCER berisi tulisan/artikel hasil pemikiran dan hasil penelitian dalam disiplin ilmu kependidikan dan pembelajaran yang dikaji secara teoritis maupun empiris.
Arjuna Subject : -
Articles 200 Documents
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THE EFFECTIVINESS OF CHEMICAL PRACTICUM KIT TO TRAIN SCIENCE PROCESS SKILL IN 10TH GRADE Rani Kurnia Ningsih; Rusly Hidayah
JCER (Journal of Chemistry Education Research) Vol. 3 No. 1 (2019): Volume 3 No. 1 June 2019
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v3n1.p1-8

Abstract

The purpose of this study was to obtain a chemical practicum KIT as an effective learning medium to train students' science process skills in scientific method, polar and non-polar covalent compounds, electrolyte and non-electrolyte solutions. This study uses a 4-D research model which includes the stages of defining, designing, developing, and distributing. However, in this study only limited to the development stage. The results of the research obtained showed that classical completeness in the posttest workmanship on all three materials was 100%. While the increase in learning outcomes aspects of science process knowledge and skills in the three materials are in the category of "medium" and "high". Based on the results, it can be concluded that the practicum KIT learning media is effective for training science process skills in scientific method, polar and non-polar covalent compounds, electrolyte and non-electrolyte solutions.
IMPLEMENTATION OF GUIDED INQUIRY LEARNING TO TRAIN STUDENTS SCIENCE PROCESS SKILLS OF CHEMISTRY EQUILIBRIUM MATERIALS Fienda Ayu Ningtiyas
JCER (Journal of Chemistry Education Research) Vol. 3 No. 1 (2019): Volume 3 No. 1 June 2019
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v3n1.p9-14

Abstract

This study describes the implementation of guided inquiry learning modelto train students science process skills of chemistry equilibrium materials. The development models using one group pretest-posttest design. Science process skills covering formulate problems, composing hypothesis, identification of variable, planning investigation, data processing, analyze investigation, and draw a conclusion. The results showed that science process skills with impelementation guided inquiry learning model have a average value of formulate problems, composing hypothesis, identification of variable, planning investigation, data processing, analyze investigation, and draw a conclusion is 89.58; 81.25; 87.50; 76.04; 89.58; 67.71; and 86.46. Studentsscience process skills have achieved completeness because gets score ≥ 80 with 75% scored classical completeness
THE EFFECTIVENESS OF PRACTICUM KIT AS A LEARNING MEDIA TO TRAIN SPS ON REACTION LAW Sigit Trimayanto; Dian Novita
JCER (Journal of Chemistry Education Research) Vol. 3 No. 2 (2019): Volume 3 No. 2 December 2019
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v3n2.p35-41

Abstract

This study aims to produce the Practical KIT along with its devices that are effectively used as learning media to train students SPS on the sub material of the Reaction Rate Law. The method used in this study is Research and Development design. The research instrument used consisted of a sheet of pre-test and post-test. Data analysis was carried out in descriptive quantitative to determine the effectiveness of Practical KIT along with the devices developed. The media is said to be effective if it meets 2 requirements, namely the percentage of classical completeness <85% and N-gain value <0.3. The developed media has been declared effective as indicated by the increase in the value of cognitive learning outcomes in the "Medium" and "High" categories with 100% classical completeness, an increase in the value of science process skills of students after using the Practical KIT media. "With classical completeness reaching 91.67%.
DEVELOPMENT OF INORGANIC CHEMISTRY OF TRANSITIONAL CHEMISTRY MATERIALS IN CHEMISTRY DEPARTMENT Dina Kartika Maharani; Kusumawati Dwiningsih; Rusly Hidayah
JCER (Journal of Chemistry Education Research) Vol. 3 No. 1 (2019): Volume 3 No. 1 June 2019
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v3n1.p15-21

Abstract

Learning materials have been developed in inorganic chemistry elements of transition elements have been developed online. The flow of the development model suggested by Thiagarajan, Semmel, and Semmel is 4-D (four D Models). This model consists of 4 stages of development, namely Define, Design, Develop, and Disseminate, but in this study it is limited to the develop stage. Based on the results of observations of student activities and student response questionnaires, it can be concluded that the material in the Inorganic Chemistry of the Transition Element is feasible. 
DEVELOPMENT OF STUDENT WORK SHEET BASED ON SOFT SKILLS ON COLLOID MATERIALS CLASS XI HIGH SCHOOL Ellen Cristy Ruku; Rusmini Rusmini
JCER (Journal of Chemistry Education Research) Vol. 3 No. 1 (2019): Volume 3 No. 1 June 2019
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v3n1.p22-28

Abstract

The purpose of the research is determine the feasibility of the student worksheet based on soft skills on the subject matter of colloids in terms of content validity and construct through the results of expert validation, practicality through student activities and student responses and effectiveness through student learning outcomes and the assessment of students' soft skills. This type of research is a 4-P model development research with stages, namely, defining, designing, developing, and dessiminate, which is limited to the development stage. A limited trial was conducted to 15 students of 11th grade in SMA Negeri 1 Bangsal Mojokerto. The results showed that the worksheet developed valid in terms of content validity obtained a percentage of 91.76% and construct validity obtained a percentage of 92.49%. Practical in terms of the results of student responses to the worksheet obtained a percentage of 97.16% and supported by observations of activities students get a percentage of 92.27%. Effectiveness in terms of student learning outcomes obtained a value of ≥ 70 with classical completeness of 100% and the assessment of soft skills of students gained a percentage of 92.41% so that students have the ability to entrepreneurship.
LEARNING THE SELVO E-MODULE TO STIMULATE CRITICAL THINKING SKILLS STUDENTS Siti Aisyah; Ratna Sari Siti Aisyah; Imas Eva Wijayanti
JCER (Journal of Chemistry Education Research) Vol. 3 No. 1 (2019): Volume 3 No. 1 June 2019
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v3n1.p29-34

Abstract

Critical thinking skills are needed in chemistry learning, because some chemistry is contextual and in Indonesia is still relatively low. This study aims to stimulate students critical thinking skills on the topic of voltaic cells by developing the Selvo E-module apparatus. Research and development is carried out by adapting and modifying the development model through the preliminary study phase and development with limited trials. The sample in this study were students of class XI MIPA Academic Year 2018/2019. The instruments used were valid and reliable essay test questions and questionnaire sheets. Based on the findings obtained, it can be seen that the application of the Selvo E-module can stimulate students to think critically. It is seen from the average value of students pretest at 20.14 and the average posttest value of students is 85.07.
IMPLEMENTATION OF COOPERATIVE LEARNING MODEL TYPE NUMBERED HEAD TOGETHER (NHT) TO TRAIN SCIENCE PROCESS SKILL IN ACID BASE MATTER OF GRADE STUDENTS AT SMAN JOGOROTO JOMBANG Mulia Sri Rahmawati
JCER (Journal of Chemistry Education Research) Vol. 3 No. 2 (2019): Volume 3 No. 2 December 2019
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v3n2.p42-45

Abstract

The purpose of this research is to describe  the implementation of syntax of the numbered heads together (NHT) type of cooperative learning model and the students science process skills when applying the Numbered Heads Together (NHT) type of cooperative learning model to the acid base material. This research uses One-Group Pretest-Posttest Design. The results of the research are shown as follows: (1) The implementation of the syntax of the NHT types of cooperative learning model obtained a percentage at three meetings in the first phase of 62.5%, 75.0%, 87.0%; the second phase of 75.0%, 87.0%, and 100%; the third phase of 75.0%, 75.0%, and 100%; the fourth phase of 62.5%, 87.0%, and 100%; the fifth phase of 75.0%, 87%, 100%; the sixth phase 50%, 100%, and 100%. (2) Science process skills of students to formulate problems get n-gain values of 0.31 in the medium category, compile hypotheses to get n-gains value off 0.49 in the medium category, collecting data get n-gain values of 1,00 with a high category, analyzing the data get a n-gain value of 0.99 with a high category, and make conclusions to get a n-gain value of 0.92 with a high category.Keywords: numbered head together (NHT), science process skills, acid base.
LEARNING OF REACTION RATE WITH NESTED CURRICULAR ARRANGEMENT TO IMPROVE CRITICAL THINKING SKILLS AND UNDERSTANDING THE CONCEPT OF STUDENTS IN ACTIVE-REFLECTIVE LEARNING Maria Fransiska Omes
JCER (Journal of Chemistry Education Research) Vol. 3 No. 2 (2019): Volume 3 No. 2 December 2019
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v3n2.p46-50

Abstract

This study aims to evaluate the learning rate of reactions by nested curricular arrangement. This learning is designed using the inquiry model. The learning process was attended by 34 XI MIA 7 students of SMAN 1 Manyar, Gresik, East Java. The objects in this study are critical thinking skills and students' understanding of the concept of active-reflective learning styles. This study was designed using "pre-experimental design," using one group pretest-posttest design. Analysis of critical thinking skills is done using t-tests and students' understanding of concepts is done using the Wilcoxon test. Learning is carried out for 2 times with the smallest percentage of performance in each meeting that is 80%. This shows the learning process is going well. Critical thinking skills that are trained and measured consist of 4 elements, namely: interpretation, inference, analysis, and explanation with a calculated value of t = 26.991. This value indicates that t arithmetic> t table. This shows that there are significant differences in students' critical thinking skills before and after learning. In understanding the concept test value of Asymp Sig = 0.00. This value indicates that the Asymp Sig <0.05. It can be concluded that there is an increase in the conceptual understanding of active-reflective learning style students after following the reaction rate learning by nested curricular structuring.
THE VALIDITY OF INTERACTIVE MULTIMEDIA ON IONIC BOND MATERIAL Deiya Gama Ilyasa; Kusumawati Dwiningsih
JCER (Journal of Chemistry Education Research) Vol. 3 No. 2 (2019): Volume 3 No. 2 December 2019
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v3n2.p51-57

Abstract

Abstract. Interactive multimedia is needed to improve student's understanding of certain material. The purpose of this study is to analyze the validity of interactive multimedia on ionic bonding material. The type of research used in this study is 4P research model (Define, Design, Development, and Dissaminate) but in this study only limited on Development step which adapted from Ibrahim (2014). The validity results showed that: (1) The content validity and construct validity obtained highly valid criteria with average percentage range gradually 90% and 91,04%. From the results, it can be conclude that the developed media was declared valid to be used as interactive multimedia on ionic bond materials.
LEARNING OF REACTION RATES WITH NESTED CURRICULAR ARRANGEMENT WHICH IS COMBINED WITH CONNECTED CURRICULAR ARRANGEMENT TO IMPROVE CRITICAL THINKING SKILLS OF THE STUDENTS Khoirotus Sa'adah; Suyono Suyono
JCER (Journal of Chemistry Education Research) Vol. 4 No. 1 (2020): Volume 4 No. 1 June 2020
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v4n1.p1-7

Abstract

Abstract. This study aims to evaluate a learning of reaction rates with nested curricular arrangement which is combined with connected curricular arrangement to improve critical thinking skills of the students. The evaluation of this study is based on the result of data collecting toward the implementation of learning, students activities, learning outcomes, critical thinking skills, and students responses. This study is conducted using scientific inquiry. The research design used in this study is one group pretest-posttest design including pre-experimental research. The subjects of this study are 36 X graders of MIPA 8 at SMAN 1 Manyar Gresik. The result of this study shows that the implementation of a learning of reaction rates with nested curricular arrangement which is combined with connected curricular arrangement to improve critical thinking skills of the students is in very high value category with percentage of agreement around ≥75% and value of the relevant students activity is greater than the percentage of the irrelevant students activity so that it has a better category. The students learning outcomes and critical thinking skills have significantly improved after conducting a learning about reaction rates with nested curricular arrangement which is combined with connected curricular arrangement which is analyzed using t-test. However, there are some students get post-test score under the expected standard value. This learning about reaction rates with nested curricular arrangement which is combined with connected curricular arrangement receives a positive responses from the students of 87, 22% by collecting data using a questionnaire response.Keywords: Critical Thinking Skills, Inquiry, Nested, Connected

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