Non-electrolyte Solution Material Research Articles

Pengaruh PBL Terhadap Keterampilan Generik Sains Siswa Pada Materi Larutan Elektrolit dan Non Elektrolit

This study aims to determine the effect of problem-based learning model (PBL) on students' generic science skills in electrolyte and non-electrolyte solution material. This research is an experimental research. The population in this study were all class X students of SMA Negeri 1 Lubuk Pakam. Sampling was done randomly by taking 2 classes, namely one experimental class (PBL model) and one control class (DI model). The instruments used in the form of objective tests in the form of multiple choices amounted to 20 questions and essay questions to measure students' critical thinking skills as many as 5 questions. Homogeneous and normal data were analyzed by paired sample t-test and N-gain normalized using SPSS Version 20. The results showed that there was an influence of PBL learning models on students' generic science skills in electrolyte and non-electrolyte solution materials. The generic skills of direct observation science are the most developed generic science skills while the lowest generic science skills are symbolic language.

PENGARUH PENERAPAN MODEL PEMBELAJARAN PREDICT OBSERVE EXPLAIN (POE) TERHADAP AKTIVITAS BELAJAR KIMIA SISWA MAN KUOK

Abstract This research was an experiment—instigated by the lack of students’ activeness in the teaching learning process. This research aimed at informing that Predict Observe Explain (POE) learning model effected students’ Chemistry learning activity on Electrolyte and Non-Electrolyte Solution material at State Islamic Senior High School of Kuok. The samples were 29 students of class X.1 (Experimental group) and 31 students of class X.3 (Control group). Interview, normality test of observation sheets, and documentation were the techniques of collecting the data. T-test was used to analyze the data. Based on the data analysis, tobserved was 2.200 and ttable was 2.00 (tobserved ≥ ttable). It revealed that Ho was rejected. In other words, it showed that there was students’ Chemistry learning activity enhancement on Electrolyte and Non-Electrolyte Solution material at State Islamic Senior High School of Kuok. The influence is counted by using Influence Coefficient (IC) Predict Observe Explain (POE) learning model it is 7,7%. Keywords:Predict Observe Explain (POE)Model, Learning Activity, Electrolyte and Non-Electrolyte Solution

PENGARUH PENERAPAN PENDIDIKAN KARAKTER MELALUI STRATEGI INKUIRI TERBIMBING PADA MATERI LARUTAN ELEKTROLIT DAN NON ELEKTROLIT

This research was a quasi-experiment instigated by the low of student character building. This research aimed at knowing the effect of implementing character building through guided inquiry strategy on electrolyte and non-electrolyte solution material at state senior high school 9 pekanbaru that characters studied were honesty, responsibility, cooperation, discipline, and curiosity. Purposive sampling was used in this research, and there were two classes of samples selected that the tenth grade of Natural Science 4 was as the experimental group taught by implementing Character Building through Guided Inquiry strategy and Natural Science 3 was as the control group taught by using discussion, question and answer methods. This research was conducted for three meetings. Documentation and observation were the techniques of collecting the data. T-test was used to know the research findings of student communication skill. Final data processing results showed that tobserved was 2.19 and ttable was 1.99, and it revealed that tobserved was higher than ttable. Ho was rejected and Ha was accepted. There was an effect of implementing Character Building through Guided Inquiry strategy on Electrolyte and Non-Electrolyte Solution material at State Senior High School 9 Pekanbaru, and its coefficient effect was 5.86%.

The Development of Chemical Impacts Based on Drawing Processes on Electrolite and Non-Elektrolite Materials for Learning in SMA

This thesis constitutes research and development which aims to produce a textbook based image process appropriate to study chemistry in High School. The process-based chemistry textbook is a textbook that displays some illustrations with a series of procedural images that display a particular process of changing something from one state (object, object, event, or phenomenon) to the next. The eligibility of textbooks is demonstrated by its validity (content and construct), its practicality, and its effectiveness for chemistry learning in secondary schools. In the validation process, the average scoring result of two expert validators and one user validator stated that the resulting book product is valid for chemistry learning in high school with an average score of 4.05. The product practicality test received a positive response from the students as the product users of 3.60% in the first and 3.75% trials in trial II with good criteria. The effectiveness of the textbook was done through a test on a sample size of 10 students and using the pretest and post-test design for class X MIPA 4 SMAN 1 Bangorejo during the semester of 2017 on the topic of the electrolyte solution and nonelectrolyte solution. The result of the effectiveness test was found by using a normalized gain able to increase the understanding of electrolyte and nonelectrolyte solution material 0.58 in the medium category with students' learning completeness equal to 85.29% with a mean value equal to 78.09% and student retention equal to 99.42% which resulted in highly positive results. The result of the research shows that the Chemistry Image Book Model is feasible to be used as print media for learning the material of electrolyte and nonelectrolyte solution in SMA.

Validitas Modul Kimia Berbasis Problem Based Research PBR pada Materi Larutan Elektrolit dan Nonelektrolit

The purpose of this study was to determine the validity of the module based on Problem Based Research (PBR) on electrolyte and non-electrolyte solution material. This research is a descriptive qualitative research to assess and obtain chemical modules on electrolyte solution and non-electrolyte material based on Problem Based Research (PBR). Module development in this study follows the three stages of the ADDIE model, namely, the analysis stage (Analyze), the design stage (Design), and the development stage (Development). Data obtained using questionnaires. The results of the expert lecturer validation showed that the module is valid with a percentage of 81.5%. The results of the expert validity test showed a validity percentage of 92.5%. Furthermore, the group trial was limited to 10 students, the responses were obtained that the aspects of language, readability, and appearance of the module were very good. These results indicate that the Problem Based Research (PBR) -based module on electrolyte and non-electrolyte solution material is developed valid to be continued at the implementation stage, and evaluation.

Pengembangan Lembar Kerja Peserta Didik (LKPD) Berbasis Multipel Representasi pada Materi Larutan Elektrolit dan Non Elektrolit

This research aims to produce valid student worksheets (LKPD) based on multiple representations on electrolyte and non-electrolyte solution material and to determine student responses to the LKPD that has been developed. This research is research and development. The research design uses the ADDIE model, but only up to the development stage. Data collection instruments used interview sheets, validation sheets and questionnaires. LKPD validation involves 3 validators, namely media, material and language experts. The subjects in this study involved 3 students for one-t-one trials and 12 students for small group trials. The research results showed that the LKPD developed was very valid with a percentage of 85,82%, of which 89,13% of the media expert validators were in the very valid category, 85,00% of the material expert validators were in the very valid category and 83,33% of the language validators were in the very valid category. Students' responses to LKPD based on multiple representations on electrolyte and non-electrolyte solution material were categorized as very good with a percentage of 91,83%, where one-to-one trials obtained a percentage of 90,27% with a very good and test category. Trying a small group (small group trial) obtained a percentage of 93,40% in the very good category.