scholarly journals Problem-based learning approach enhances the problem solving skills in Chemistry of high school students

2019 ◽  
Vol 9 (3) ◽  
pp. 282 ◽  
Author(s):  
Joseph Valdez ◽  
Melfei Bungihan

The study aimed to investigate the effectiveness of problem-based learning (PBL) approach in enhancing the problem solving skills in Chemistry of Grade 9 students in a public high school in the Philippines. The level of problem solving skills of the students in the non-PBL and PBL group before and after their exposure to non-PBL and PBL approaches was determined respectively. The comparison of their levels before and after the intervention was done to determine the effectiveness of the non-PBL and PBL approaches. Then comparison of the effectiveness of non-PBL and PBL approach was assessed. Using the descriptive-comparative and pretest-posttest experimental design in processing the data from 96 students, the following revelations were obtained: (1) the level of problem solving skills before and after their exposure to non-PBL approach is generally very low; (2) the level of problem solving skills was initially very low but was comparatively increased to low after exposure to PBL; (3) there was a significant difference in the level of problem solving skills of the students in the PBL group; (4) between these two approaches in this study, the PBL approach of teaching the chemistry concepts to Grade 9 students was proven more effective than the non-PBL approach.

2015 ◽  
Vol 67 (1) ◽  
pp. 42-52
Author(s):  
Fatih Senduran ◽  
Tayfun Amman

Abstract In this article, the effect of regular sport activities on the problem-solving approaches performed by high school students when they encountered said problem was analyzed. Six hundred male high school students participated in the study (Mage=15.45 years, age range: 14-17 years). The Problem-Solving Inventory (PSI) was used to evaluate students’ problem-solving solutions. Student-athletes were selected from the students who took charge in school teams, exercised for 6 days a week, provided that this exercise did not exceed 1 h 30 min, and who also participated in competitions. Mann-Whitney U test, which is nonparametrictest, was used to examine two samples (athlete, & non-athlete) and Kruskal-Wallis one-way analysis was used to make intergroup (branches of sport) examinations. According to the findings that were obtained, a significant difference was found among selfconfident approach values of athlete and non-athlete students (U=45.0, p=0.008). A significant difference was observed among assessor approach values of athlete and non-athlete students (U=46.2, p=0.033). The students who did sports regularly were more self-confident than those who did not do sports regularly and were of the same age when they encountered a problem, and student-athletes evaluated the phase of solving the problem and results that they obtained more carefully than those who did not do sport regularly and were of the same age. Student-athletes believed that they would solve the problem that they encountered. Further, student athletes preferred using a systematic method while solving a problem and making a decision more often than those who were not athletes and were of the same age.


2020 ◽  
Vol 6 (1) ◽  
Author(s):  
I Wayan Karmana ◽  
Iwan Dody Dharmawibawa ◽  
Titi Laily Hajiriah

The purpose of this research is to explain the effect of Problem Based Learning (PBL) and academic potential and their interactions toward problem solving and critical thinking skills of high school students. This research is a quasi-experiment that implements two different strategies with pretest-posttest non equivalent control group design by treatment factorial 2x2 which was conducted in the 2018/2019 academic year. Population of this research was class X students of SMA Negeri 8 Mataram, while the research sample was class X students of 2 classes with a purposive sampling technique. Research instruments is test of problem solving skills and test of critical thinking skills. Data analysis was performed with descriptive analysis and to test the hypothesis an anacova test was followed by further test used of Least Significant Difference (LSD). The calculation is aided by the SPSS 14 for Windows program. The results of this research showed that Problem Based Learning affects the problem solving and critical thinking skills. While academic ability (potential) and interaction of learning strategies with academic potential do not affect the problem solving and critical thinking skills of high school students on enviromental topic.


Author(s):  
Pawan Tyagi ◽  
Christine Newman

Preparing high school students for engineering disciplines is crucial for sustainable scientific and technological developments in the USA. This paper discusses a pre-college program, which not only exposes students to various engineering disciplines but also enables them to consider engineering as the profession. The four-week long “Engineering Innovation (EI)” course is offered every year to high school students by the center of outreach, Johns Hopkins University. EI program is designed to develop problem-solving skills through extensive hands-on engineering experiments. A team consisting of an instructor, generally a PhD in Engineering, and a teaching fellow, generally a high school science teacher, closely work with students to pedagogically inculcate basics of core engineering disciplines such as civil, mechanical, electrical, materials, and chemical engineering. EI values independent problem-solving skills and simultaneously promote the team spirit among students. A number of crucial engineering aspects such as professional ethics, communications, technical writing, and understanding of common engineering principles are inculcated among high school students via well-designed individual and group activities. This paper discusses the model of EI program and its impact on students learning and their preparation for the engineering career.


2021 ◽  
Vol 2 (1) ◽  
pp. 42-53
Author(s):  
Dyah Ayu Setyarini ◽  
Zainal Arifin Imam Supardi ◽  
Elok Sudibyo

This research aims to improve senior high school students’ physics problem-solving skills through learning used IBMR learning model. This research was a pre-an experimental study with a one-group pre-test and post-test design. The Methods of data collection used validation and test. The materials used to teach were valid category by two experts and can be used to practice physics problem-solving skills. The average post-test score physics problem-solving ability was 73.24 with an N-gain of 0.59 was classified as moderate. The success of IBMR learning model-based devices in practicing problem-solving abilities can be seen in the increase in the average score in each indicator of problem-solving abilities. The indicator of understanding the problem had the highest post-test average score of 94.58 with an N-gain of 0.89 in the high category. The problem-solving indicator had the lowest posttest average score was 58.22 with N-gain 0.39 and mean that it was the moderate category. Based on the results study, it can be concluded that the learning used by IBMR learning model can practice the ability to solve physics problems on heat material and its displacement. Learning with the IBMR learning model was expected to train students in solving physics problems. The stages in the IBMR learning model can help students


Author(s):  
Ariana-Stanca Vacaretu

Mathematics is or it should be about problem solving and math thinking. However, what mathematics students learn in schools is more about procedures for solving different types of math exercises and problems. In many cases, students learn by heart algorithms and words (math concepts) and use them for solving different math tasks. School math is very far from what mathematicians do and, in many cases, doesn’t motivate students for learning math. This paper presents the way we organized the assessment of the students’ skills developed through math research workshops and some of the assessment results. Even though we didn’t assess all the competences the students develop through the math research workshop, the findings show that the students certainly develop their problem-solving skills.


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