The Effectiveness of Problem-Based Physics Learning to Improve High School Students' Science Process Skills

Problem-solving is one of the competencies in the learning innovation that students must possess to prepare life challenges in the 21st century. This study aimed to improve student problem-solving ability and cognitive learning outcome through the implementation of problem-based learning (PBL) model in learning biology at the senior high school. This research is a quasi-experimental research with pretest and posttest design. Two classes were chosen randomly from five classes of 10th-grade students for conducting research by implementing PBL and direct instruction learning models as an experiment and control (conventional) class, respectively. The problem-solving ability was measured by the essay test as well as the cognitive learning outcome at the end of the research and was analyzed by t-test. The result showed that students in the PBL class have a higher improvement in problem-solving ability. The student ability to problem-solving in the PBL class was also significantly higher than the conventional class. In addition, students in the PBL class have a higher cognitive learning outcome than the conventional class. This finding indicates that the PBL model can be implemented in the learning practices, especially in biology, to develop the problem-solving skill of students. Problem-solving is one of the competencies in the learning innovation that students must possess to prepare life challenges in the 21st century. This study aimed to improve student problem-solving ability and cognitive learning outcome through the implementation o f problem-based learning (PBL) model in learning biology at the senior high school. This research is a quasi-experimental research with pretest and posttest design. Two classes were chosen randomly from five classes of 10th-grade students for conducting research by implementing PBL and direct instruction learning models as an experiment and control (conventional) class, respectively. The problem-solving ability was measured by the essay test as well as the cognitive learning outcome at the end of the research and was analyzed by t-test. The result showed that students in the PBL class have a higher improvement in problem-solving ability. The student ability to problem-solving in the PBL class was also significantly higher than the conventional class. In addition, students in the PBL class have a higher cognitive learning outcome than the conventional class. This finding indicates that the PBL model can be implemented in the learning practices, especially in biology, to develop the problem-solving skill of students.

This study aims to determine the effectiveness of the problem-based learning (PBL) model in improving the critical thinking skills and learning motivation of 10th grade senior high school students through the biology-based learning of environmental concepts and pollution, especially water and soil pollution. This study also aims to determine students' responses to the problem-based learning model. A quasi-experiment with a control group before and after the test is used to conduct the research. This research was done over the course of four meetings. The population of this study consists of all 10th-grade senior high school students, with the following characteristics: the first 10th-grade senior high school students are an experimental class implementing PBL with Zoom Cloud Meeting, and the second 10th-grade senior high school students are a control class with a scientific approach learning model. The N-Gain test was used to measure critical thinking skills before and after learning, as well as the level of motivation at the end of learning, to collect data for this study. The findings showed that: 1) The PBL model was implemented successfully, with a score of 95%, using Zoom cloud meetings. 2) When compared to the 5M models, the implementation of learning using the PBL model through Zoom Cloud Meetings improved students' critical thinking skills. The N-Gain test results were within the middle range, precisely 0.51. 3) Using Zoom cloud meetings to apply the PBL approach has no meaningful effect on increasing students' learning motivation. 4) Students were highly enthusiastic about studying the PBL methodology using Zoom cloud sessions

The purpose of this study is to determine the influence between student learning motivation and gender on students' science process skills in physics learning. This study is included in the type of survey with a comparative design and uses a quantitative approach to analyze the relationship between variables. The population in this study is all grade IX students of SMP Negeri 4 Singkawang, data was taken using saturated sampling techniques. The instrument used in this study was a learning motivation questionnaire consisting of 22 statements and science process skills test questions consisting of 10 expanded multiple-choice questions. The data analysis technique used in this study is the two-way ANOVA Test. The results of the hypothesis test show that. (1) There is no difference in students' science process skills based on learning motivation in physics learning. (2) There is no difference in students' science process skills based on gender in physics learning. (3) There is an influence of student learning motivation and gender on students' science process skills in physics learning. With a sig value > 0.05 for hypotheses (1) and (2), while a sig value < 0.05 for hypothesis (3). From the explanation above, it can be concluded that individually, learning motivation and gender do not affect students' science process skills. But the combination of these two variables affects students' science process skills in physics learning.

This study aims to analyze the significant influence of the Problem-Based Learning (PBL) model on students' mathematical problem-solving abilities. This meta-analysis includes ten scientific articles comparing the PBL model with conventional teaching methods. The article selection process followed the PRISMA 2020 guidelines to ensure transparency and rigor. Data were analyzed using the Mann-Whitney U test due to the non-normal distribution, and Spearman’s Rank Correlation was used to assess the strength of the relationship between PBL and students' problem-solving abilities. The results indicate that the PBL model has a significant and positive impact on students' mathematical problem-solving abilities compared to conventional methods, with a large effect size of r = 0.642. The Spearman’s Rank Correlation revealed a strong positive relationship (r_s = 0.782) between the implementation of PBL and the improvement in problem-solving skills. These findings are supported by several factors contributing to PBL's success, including active student engagement, effective teacher facilitation, the use of real-world contexts, and a supportive classroom environment. This study concludes that the PBL model is a highly effective pedagogical approach for enhancing mathematical problem-solving skills. Considering the significant positive effects, this study recommends the widespread adoption of PBL in educational environments to improve students' critical thinking and problem-solving abilities. Further research is needed to explore the long-term impacts of PBL and its application in different educational contexts. Keywords: problem-based learning, mathematical problem-solving, meta-analysis, mann-whitney u test, spearman’s rank correlation. DOI: http://dx.doi.org/10.23960/jpmipa/v25i2.pp864-877

The purpose of this research has described difference: (1) skill of student science process between inquiry training assist media of handout and direct instruction, (2) skill of student science process between student possess attitude scientific upon and under of mean, and (3) interaction of inquiry training assist media handout and direct instruction with attitude scientific increase skill of student science process. Type of this research is experiment quasi, use student of senior high school Private sector of Prayatna as population and chosen sample by cluster sampling random. The instrument used essay test base on skill of science process which have valid and reliable. Data be analysed by using ANAVA two ways. Result of research show that any difference of skill of student science process (1) between inquiry training assist media of handout and direct instruction, where inquiry training assist media of handout better then direct instruction, (2) between student possess attitude scientific upon and under of mean, where possess attitude scientific upon of mean better then student possess attitude scientific under of mean and (3) any interaction between inquiry training assist media of handout and direct instruction with attitude scientific increase skill of student science process, where interaction in class direct instruction better then inquiry training assist media of handout.

The collaborative creativity learning (CCL) model is a collaborative-based scientific creativity learning to improve scientific creativity, science process skills, and collaborative skills of the junior high school students. The purpose of this research is to improve science process skills of junior high school in physics learning through the implementation of CCL model. This research used one group pre-test and post-test design toward 144 students of State Junior High School 2 Jember and State Junior High School 3 Jember (Jember, Indonesia) academic year 2017/2018. The student’s science process skills were measured by using Science Process Skills Instrument (SPSI) with indicators of formulating problems, formulating the hypothesis, identifying variables, formulating the operational definition of variables, designing the data table, carrying out the experiment, analysing the data, formulating the conclusions. The data analysis technique used the Wilcoxon test, n-gain, and Mann-Whitney U test. The results show that: (1) The average post-test score was in the medium category, (2) There is improvement of student’s science process skills at α = 5%, (3) N-gain average score of student’s science process skills was in medium category, and (4) There is no difference (consistent) n-gain on student’s science process skills in all groups. Therefore the CCL model has proven to be effective to improve the science process skills of junior high school in physics learning. The implication of this research is that CCL model can be used as a solution to improve science process skills of junior high school in physics learning.

Research has been carried out to stimulate students’ Science Process Skill (SPS) and Science Creativity (SC) in Physics learning on Polarization of Light through the development of problembased e-worksheet assisted with Fliphtml5. This research was a development research with the type of Design and Development Reaserch (DDR). The data from this research were in the form of validation results, assessment of students' science process skills and scientific creativity, as well as practicality test results were analyzed used mixed methods. The results of data validation show that the developed e- worksheet obtained a score of 95.5% with very high validity criteria. Assessment of students' science process skills and scientific creativity obtained a score of 87% in the highly stimulated criteria. Other results show that the practicality of the product is 89% in the very high category, the student response is 83% in the very good criteria, and the teacher's perception is 92% in the very possible criteria. Based on the results of data analysis, it can be concluded that the students’ science process skills and scientific creativity in Physics learning on Polarization of Light can be stimulated through problembased e-worksheet assisted with Fliphtml5.

Applying the project-based learning model in learning can train and develop scientific attitudes and problem-solving skills so that students can increase creativity, innovation, and critical perspectives. This research aims to determine the effect of the project-based learning model on student's science process skills and critical thinking. The research subjects of class X Phase E. This research was quantitative research with a quasi-experimental research design with a non-randomized control-group pretest-posttest design. The instruments used are essay questions on science process skills and critical thinking. The test results were analyzed using Quade's rank analysis of covariance statistical test and the One Way Ancova test. The research results show that the average pretest-posttest score of experimental class students taught using the project-based learning model is higher than that of control class students taught using the problem-based learning (PBL) model. Hypothesis testing using Quade's rank analysis of Covariance and One Way Ancova tets informs that the use of the project-based (PjBL) model affects student's science process skills and critical thinking.

Science process skills and critical thinking abilities are two things students must have. Some studies show that students are lack of science process skills and critical thinking. Therefore innovation in the learning process through the application of the group investigation model is needed to improve students' science process skills and critical thinking abilities. This research aims to improve students' science process skills and critical thinking abilities through the application of group investigation learning models. This research was conducted using an experimental method with a pretest-posttest control group design. The research subjects were two groups consisting of 58 experimental group students and 68 control group students. Learning in the experimental group is carried out through group investigation model learning, while the control group uses conventional learning models. The parameters measured were an increase in science process skills and critical thinking skills. The science process skills and critical thinking abilities data were analyzed using parametric statistics, namely testing the difference in the two average normalized gain (n-gain) scores using an independent sample t-test. The results showed a significant difference in the improvement of science process skills and critical thinking of students between the experimental class and the control class. It means that the application of the group investigation learning model contributes both to the improvement of students' science process skills and critical thinking abilities.

Physics learning in senior high schools often faces challenges due to monotonous teaching methods and a lack of interesting media, resulting in low student interest and learning outcomes. This study aims to determine the effect of implementing the Problem-Based Learning (PBL) model supported by Powtoon-based assessment media on students' physics learning outcomes. Powtoon provides visual animations that can improve students' conceptual understanding. This study employed a quasi-experimental method with a post-test only control group design. The subjects were 72 eleventh-grade students at Arjasa State High School, randomly divided into 36 students in the experimental group and 36 students in the control group. The independent variable in this study was the PBL model with Powtoon media, the dependent variable was students' physics learning outcomes, and the control variables were the same topic and duration of instruction. The instrument used was a test consisting of essay questions. Data analysis was conducted using an independent sample t-test with a significance level of 0.05. The results of the study indicate a significant difference between the learning outcomes of students in the experimental group and the control group, with the experimental group achieving higher scores. Therefore, it can be concluded that the implementation of the PBL model with Powtoon as an assessment medium has a positive effect on students' physics learning outcomes. This approach can be used by teachers to enhance students' conceptual understanding and engagement in physics learning.

The PBL and PjBL models are student-centric learning models that are needed to improve student skills in the 21st century. This study aims to find out the differences between the PBL and PjBL models of critical thinking skills of students at SMAN 1 Lhokseumawe on material reaction speed. This research uses experimental methods with a type of Quasi Experimental Design. The sampling technique was carried out in a purposive way with a total sample of 72 students. The test results show no significant differences between PBL and PjBL models. The result of this test is sig (2-tailed) 0.162 > 0.05 H0 received and H1 rejected. In other words, there is no significant difference in critical thinking skills between students taught with the PjBL model and the PBL model

Indonesian National Qualification Framework requisite on students’ scientific process skill in analytical chemistry courses is difficult to be satisfied since the content is loaded with calculation and applicative discovery. Overcoming this challenge, investigative study of guided inquiry-based learning with creative thingking ability towards students’ scientific process skill in analytical chemistry courses was done. The implementation was done towards 56 pre-service chemistry teachers. As comparison, conventional learning model was done towards 26 pre-service chemistry teachers using th same courses. The effectivenes was measured using pre and post-test which consisted of fifteen valid and reliable essay items. For statistical analysis of variance (ANOVA) was used and resulted students’ scientific process skill which taught by using guided inquiry-based learning is better than conventional class, especially for upper group of creative thingking ability with average of postest in experimental class is 31.11 meanwhile control class is 18.08 from maximum score is 39. The interaction between learning model with creative thingking model and students’scientific process skill was significant with probability 0.04 lower than selected alpha 0.05. According to these results, innovation of guided inquiry-based learning with creative thingking ability is recommended to improve students’ scientific process skill especially for chemistry courses.

Today’s sprouting medical technology demands that students are more innovative in their approach towards medical practice. Problem based learning (PBL) has proven to be one of the most efficacious disciplines aimed at improving problem-solving skills and self-directed learning. The objective of this study was to review students’ perspectives on the implementation and effectiveness of PBL at Avalon University School of Medicine (AUSOM). A cross-sectional questionnaires survey was conducted among basic science students with qualitative and quantitative questionnaires. The response recorded and the data analysed using Stata-15 (StataCorp LLC). Most students believed PBL was beneficial to learning. 82.18% (n=83) agreed that they benefited from PBL and 91.09 % (n=92) were in concordance PBL provided a positive learning environment to enhance their understanding. The most important objectives of PBL identified by the students were to improve the presentation skills, enhance depth of understanding and develop critical thinking. PBL is helpful in improving students understanding of the basic medical science courses, allowing for self-improvement. PBL allows students to actively engage in the collaborative active learning process. It is imperative PBL should be introduced early in pre-clinical years and implemented effectively to enhance the learning environment with the favourable outcome.

The study aims to describe the implementation of students' worksheets based on problem-based learning to improve students' science process skills, the activity of students' science process skills, and the student's responses. The research used is pre-experimental with one group pre-test post-test research design using one experiment class. The research is conducted at junior high school 6 Gresik with a sample of one class, namely VII-G, consisting of 30 students. The data collection method used are observations, written tests, and questionnaires. The data analysis technique used is quantitative descriptive. The result of the study shows that the learning implementation for three meetings got the average criteria carried out well. The science process skills observed are formulating problems, formulating hypotheses, identifying variables, interpreting data, making conclusions, and communicating. The average N-gain score obtained is 0.88 in the high category, which indicates that the students' science process skills have increased. The learning process also responds positively, with an average response of 93% with very effective criteria. Based on the description above, it can be concluded that learning by using students' worksheets based on problem-based learning can enhance students' science process skills on environmental pollution material.

The purpose of this study was to determine the effect of the practicum-based Contextual Teaching and Learning model on science process skills and student learning outcomes in grade X social science on Fungi material at State Madrasah Aliyah 1 Situbondo, Indonesia.The sampling technique is purposive sampling, where two classes have an initial entry test score with an average of almost the same, namely class X Social Science 1 (experimental class) and class X Social Science 3 (control class).The data collection technique used were observation, test, and documentation, while the data collection instruments were observation sheets, test instruments, and documentation instruments.To analyze the data, an Independent Sample T-Test was used with prerequisite tests including the normality test and homogeneity test.The results showed that there was a significant effect of the practicum-based Contextual Teaching and Learning model on science process skills and student learning outcomes on Fungi materials in class X social science at State Madrasah Aliyah 1 Situbondo, Indonesia.It can be concluded that the collaboration between the practicum-based Contextual Teaching and Learning model can be applied in biology learning to empower students' science process skills and improve student learning outcomes on Fungi material.