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INDONESIA
JCER (Journal of Chemistry Education Research)
ISSN : 25491644     EISSN : -     DOI : -
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 39 Documents
THE VALIDITY OF INTERACTIVE MULTIMEDIA ON IONIC BOND MATERIAL Ilyasa, Deiya Gama; Dwiningsih, Kusumawati
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 RATE WITH NESTED CURRICULAR ARRANGEMENT TO IMPROVE CRITICAL THINKING SKILLS AND UNDERSTANDING THE CONCEPT OF STUDENTS IN ACTIVE-REFLECTIVE LEARNING Omes, Maria Fransiska
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.
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 Rahmawati, Mulia Sri
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.
THE VALIDATY AND PRACTICALITY OF MEDIA FOR TEACHING ATOMIC BOLLS FOR CLASS X STUDENTS ON THE MATERIAL OF ATOMIC STRUBTURE indang, indang -; Sabekti, Ardi Widhia; Adriani, Nina
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.p72-77

Abstract

One effort to improve student learning outcomes is to choose teaching media that are appropriate and attract students' attention. The media developed is a three-dimensional ball teaching media.The purpose of this study is to develop three-dimensional atomic ball teaching media, to find out the validity level of three-dimensional atomic ball teaching media, to find out the practicalities of the three-dimensional atomic ball teaching media that have been developed. This research is a type of Research and Development (R & D) research using a 4D development model, namely define, design, develop, and dessiminatebut is limited to the develop stage. The teaching media developed were validated by media experts and material experts. The subject of this research trial was a chemistry teacher to find out the practicality of three-dimensional atomic balls teaching media, and 20 students of East Siantan 1 High School to find out the practicality of three-dimensional atomic balls. The method used to analyze data uses qualitative and quantitative descriptive techniques. The results showed that the validity of three-dimensional atomic ball teaching media for atomic structure material was obtained from the results of a media expert's assessment of 95.19% with very valid criteria, and the material expert's assessment was 81.23% with very valid criteria.The practicality test results were obtained from teacher responses of 92.5% with very practical criteria, and 81.41% student responses with very practical criteria. Based on the results of the study it can be concluded that atomic ball teaching media in three dimensions of atomic structure are worthy of being used as learning media by teachers and students.
THE EFFECTIVENESS OF PRACTICUM KIT AS A LEARNING MEDIA TO TRAIN SPS ON REACTION LAW Trimayanto, Sigit; Novita, Dian
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%.
THE EFFECTIVENESS OF DIRECT INTERACTION MODEL–ASSISTED MACROMEDIA FLASH ON COLLIGATIVE PROPERTIES OF SOLUTIONS MATERIAL Fatayah, Fatayah; Purwanto, Kriesna Kharisma
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.p65-71

Abstract

Abstract. The purpose of this study was to determine the effectiveness of the use of direct instruction model-assisted macromedia flash. The effectiveness of the learning model are measured by two indicators, that are the activities of students during learning and the level of completeness of student learning outcomes after learning activities. From the analysis of the data it is known that the activities of students during learning are at scores 4 and 5, the average cognitive score of students is 78 and the lowest score was 76. From the results of this study it can be concluded that the application of direct instruction model based on macromedia flash is effective to reduce student learning difficulties Class XII IPA MA Al-Khoiriyah Dalegan Panceng on the colligative properties of the solutions material. Keywords: effectiveness, direct instruction model, macromedia flash, colligative properties of solutions
DEVELOPMENT OF STUDENTS’ WORKSHEET WITH MIND MAPPING STRATEGY TO IMPROVE THE STUDENTS’ CREATIVE THINKING SKILLS ON STOICIOMETRY MATERIALS Wardani, Hikma
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.p58-64

Abstract

The learning process of 2013 curriculum emphasizes on the students? skill, it also demands them to be more active and have extraordinary abilities such as creative thinking skills. The purpose of this study is to describe the feasibility of the Students? Worksheet with the mind mapping strategy to improve the students? creative thinking skills on stoichiometry material. There are tree aspects which were observed in the students? worksheets to measure the feasibility, those are content, presentation, and language. This study was conducted based on 4-D development model which has been modified into 3-D (define, design, and develop). The limited trial was implemented on 12 students of X Science 2 in Senior High School 3 Mojokerto. Furthermore, the results showed that from the three aspects of students? worksheet which were content, presentation and language were categorized to be very feasible with the percentage 91.88%;93.55%;86.67 % . The students? activities and responses were the data that obtained through the limited trials with the percentage 97.62% and 88.02% of each. Moreover, the increasing of the students? creative thinking skills and learning outcomes can be seen from the N-Gain value which were 0.74 and 0.75, and belonged to high category. Based on the results it can be concluded that the students? worksheet with a mind mapping strategy was feasible and able to improve the students? creative thinking skills and learning outcomes on stoichiometry material
ENGLISH FOR TEP LEARNING MEDIA BASED VI-LEARN TO TRAIN VERBAL COMMUNICATION SKILLS OF CHEMISTRY STUDENT Yonata, Bertha; SBW, Maria Monica; NOVITA, DIAN
JCER (Journal of Chemistry Education Research) Vol 2, No 2 (2018): Volume 2 No. 2 December 2018
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v2n2.p70-75

Abstract

Learning can not only be done in the classroom with direct face-to-face activities but can now be done with the help of IT, for example with learned learning. Although learning with vi-learn or e-learn cannot indeed replace overall face-to-face learning in the classroom. The world of education cannot be separated from technological advances such as this study because sometimes in carrying out classroom learning there are obstacles that cannot be avoided. These obstacles can be administrative in nature such as national holidays which coincide with the schedule of courses and cannot be replaced on another day due to limited space and insufficient time. In this study, learning tools for the English for TEP-based learning program have been developed to learn the verbal communication skills of students majoring in chemistry. From the data from the validation results, it can be concluded that learning devices consisting of enrichment modules and worksheets are feasible to be used in learning lessons. Likewise, from the response data, students showed a positive response from students in using enrichment modules and worksheets.
IMPLEMENTATION OF TGT LEARNING MODEL TO IMPROVE LEARNING ACTIVITIES AND STUDY RESULTS Widodo, Sulistyo
JCER (Journal of Chemistry Education Research) Vol 2, No 1 (2018): Volume 2 No. 1 June 2018
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v2n1.p37-44

Abstract

Abstract. This Classroom Action Research (CAR) aimed to know how the implementation of TGT Learning Model can improve the learning activities and study results of the students of class X MIPA H. SMAN 1 Kediri, This students learning activities at the first cycle was 46.8 % and the second cycle was 69.28 %, The study results at the first cycle was 33.33 % and the second cycle was 83.33 %. It can be concluded that TGT Learning Model can improve the learning activities and study results.
IMPLEMENTATION OF GUIDED INQUIRY LEARNING MODEL THROUGH CONTEXTUAL APPROACH TO IMPROVE THE ACTIVITY AND STUDY RESULT Suryani T, Andi Lilis; Hasri, Hasri; Sugiarti, Sugiarti
JCER (Journal of Chemistry Education Research) Vol 1, No 1 (2017): Volume 1 No. 1 June 2017
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v1n1.p27-36

Abstract

This Classroom Action Research (CAR) aimed to know how to implement the steps of Guided Inquiry learning Model through Contextual Approach to improve the activity and study results of the Student of Class XI IPA3 of SMAN 7 Pinrang. This research was held by two cycles. Research result data show the average percentage of student learning activities the first cycle were 46. 80% in less active category and the second cycle were 69.28% in active category andcompleteness class percentage the first cycle were 33.33% not complete category and the second cycle were 83.33% with complete category. It can conclude that the steps of guided inquiry learning model through contextual approach can be improve the activity and study result of SMAN 7 Pinrang student.

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