This study aims to investigate the effect of differentiated learning in the Problem Based Learning model on the cognitive learning outcomes of high school students. This research uses a quasi-experimental approach with a Nonequivalent Control Group research design. The research sample was selected using a purposive sampling technique with a total sample of 70 students of class X in one of senior high schools in Cimahi city, Bandung. The instrument used consisted of 4 reasoned multiple choice questions about momentum and impulses to measure students' cognitive learning outcomes. The results showed that the average value of N-Gain in the experimental class was 0.81 in the high category and in the control, class was 0.42 in the medium category. Statistical results show that the value of Asymp.Sig is 0.00 > 0.05. That is, there is an effect of differentiated learning in the Problem Based Learning (PBL) model on the cognitive learning outcomes of high school students on physics material
This study aims to analyze the relationship between supervision, integrity and performance of primary school teachers. The participantes of the study were 150 teachers of public elementary schools in Dumai Barat subdistrict, Dumai city, and the sample was determined using the proposite stratifield random sampling technique. The method of data collection was done by distributing questionnaires for the supervision and integrity variables, while for the teacher performance variable it was with documentation. The results of the study show that there is a positive correlation between supervision on teacher performance, a positive correlation between integrity and teacher performance, and a positive correlation between supervision, integrity and teacher performance.This study concludes that there is a positive and significant correlation among supervision, integrity, and performance of primary school teachers in Dumai Barat Subdistrict, Dumai City.
Knowing about metal coating (electroplating) is the electrodeposition of coatings or coatings attached to the electrodes to protect the substrate by giving surface properties and dimensions different from the base metal or finishing technique, by coating metal that is easily corroded (corrosion) with metals that are resistant to corrosion with electrical and chemical engineering. Whereas in Indonesian society the technique for metal coating is very familiar with the name of the gilding technique. In ancient times before electroplating and gilding were discovered to avoid corrosion of metals, the incorporation of metals such as copper with tin into bronze, copper with zinc into brass in addition to being resistant to corrosion also added to the beauty of color. Among the alloys above bronze is the oldest alloys that have been used by humans. With the development of the times, more modern gilding techniques were found to be a more practical method, namely electroplating, gilding with electrical and chemical processes that make metals resistant to corrosion. Metal coating is a scientific field which is one of the applications of electro chemical technology. Very closely related to the material science and technology, surface chemistry, physical chemistry, to the engineering. Various metals can be plating. The various metals are classified into five groups: "tumbal" coatings, decorative-protective coatings, engineered metal coatings, rare-use metals, and various types of alloys. All of these have their own characteristics, both advantages and disadvantages.
Methods of teaching reading skill are not the same in different countries. It depends on the condition and situation of the learners. Observing the method of teaching in Malaysia was the purpose of this study and the result of the study shows that there are 5 methods that are applied in classroom activities namely Grammar Translation Method (GTM), Direct Method (DM), Communicative Language Teaching (CLT), Audio Lingual Method (ALM) and Silent Way (SW). Through these methods, the students and the teacher can reach the purpose of teaching reading. From this study, it can be concluded that combining more than one method is one of the better ways for the teaching reading skill to EFL learners.
Metals react with acid to produce hydrogen gas. Some of floor cleaner liquids contain concentrated strong acid such as HCl. This study was conducted to react metals (Zn, Al, Fe, Cu) with floor cleaner liquids (WPC and Vixal) that contain 17% HCl to produce hydrogen gas. The most hydrogen gases were resulted from reaction between Al and both of floor cleaner liquids. They show the same trend Al>Cu>Zn>Fe for the volume of hydrogen gas produced . It was not appropriate with theory due to different of surface area of each metals used.
Stress cannot be separated from student academic life in university. This stressful condition, if not managed properly, can prevent students from successfully completing their studies. This study aimed to examine the effects of Gratitude-Cognitive Behavior Therapy (G-CBT) in reducing academic stress among students. Sixteen students were recruited for this research, all of which were working on their thesis projects. Among these participants, 10 were assigned to the experimental group and six were assigned to the control group. The effect of the intervention was tested using a quasi-experiment with an untreated control group design with pretest and posttest samples. The Academic Stress Scale and the Grateful Scale were used to measure academic stress and gratitude. Analysis using the non-parametric Mann-Whitney U Test showed that following the administration of G-CBT treatment, there was a larger reduction of academic stress among participants in the experimental group compared to the control group (Z = -3.264; p <0.05). The study concluded that G-CBT intervention can reduce academic stress on students.
This research is based on the phenomena that the students often find difficulties in comprehending English texts, especially in recount texts. This research aims at investigating the effectiveness of Edmodo and Chamilo media in Know-Want-Learned strategy to teach reading comprehension of recount texts to students with good and poor reading habits. An experimental research with 2x2 factorial design was applied in this study. The samples of this research were the students of X TKJ 1 and X TKJ 2 of SMKN 1 Sragi Pekalongan. Observation, questionnaires, and tests were the instruments of the research. T-test and ANOVA were the data analysing methods. The research findings revealed that firstly Edmodo media in Know-Want-Learned (KWL) strategy was effective to teach reading comprehension of recount texts to students with good and poor reading habits. Secondly, Chamilo media in Know-Want-Learned (KWL) strategy was also effective to teach reading comprehension of recount texts to students with good and poor reading habits. Thirdly, there was no significant difference on the effect of Edmodo and Chamilo media to teach reading comprehension of recount texts to students with good reading habit. On the contrary, there was significant difference on the effect of Edmodo and Chamilo media to teach reading comprehension of recount texts to students with poor reading habit. Finally, there was no effective interaction among Edmodo and Chamilo media, reading strategy, students’ reading habits, and students’ reading comprehension of recount texts.
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