Professional training for in-service teachers is at an utmost level to improve their teaching practices. Therefore, this study aimed to assess the effect of professional training on in-service secondary school physics teachers' motivation to use Problem-Based Learning (PBL). A pre-and posttest quasi-experimental design was used to conduct the study. A two-day professional training on PBL was delivered as an independent variable, while teachers' motivation to use PBL was conceived as the dependent variable. The study involved fifty (50) in-service physics teachers (20 in control and 30 in the experimental group) from 25 secondary schools in four districts of Southwestern Uganda. Data were analyzed with SPSS v.23.0 using descriptive statistics, and paired, and independent samples t-test. The findings indicated a high statistically significant (p<.05) positive change and a greater motivation to use PBL among teachers who received professional training in PBL compared to those who did not receive it. It was recommended that the Government, in conjunction with school administrators, regularly organize similar training and, if possible, for all teachers national wide.

Background: Attitude is a learning scale that informs which approach should be used to call students to school. It can be seen a supporting tool that informs teachers, policymakers, and researchers of the needs for raising interest in learning a certain subject, such as physics. This study aimed at determining the effect of problem-based learning on students’ attitude towards learning physics. Methods: The study followed a quantitative approach with a quasi-experimental design employing cross-sectional survey techniques. The participants of the study were 419 13th-grade physics students of the 2020/2021 school year in both Ugandan government and private secondary schools. Among these students, one group was taught using problem-based learning instruction while another group was taught using traditional instruction for 12 weeks. Data were collected using a standardized tool called Views About Science Survey. Using Microsoft Excel 2016 and Statistical Package for Social Scientist version 23.0, descriptive and inferential statistics were used to determine a significant difference between experiment and control groups. Results: It was found that both problem-based learning and traditional instructions caused a statistically significant positive effect on students’ attitudes towards physics. However, the experimental group gained more positive attitude than the control group as they were more inclined towards the expert-like attitude (thinking like a scientist in a domain) than their counterparts due to the problem-based learning approach they learned in. Conclusions: Therefore, it was concluded that problem-based learning is a more effective method of teaching physics than traditional methods. Hence, we suggest that secondary school teachers need to adopt the use of problem-based learning in the teaching of science concepts, especially physics.

Background: Regular class observations are common ways of monitoring what happens inside classrooms during the teaching and learning processes. From the start of 2020, the Ugandan Education System introduced a new curriculum focusing on active learning methods which foster learner-centered approaches, including Problem-Based Learning (PBL). However, this new curriculum is now only emphasized in the lower classes (grades eight and nine), and teachers of the upper classes are still at liberty to use methods of their choice. This study documented the effect of problem-based learning on Ugandan secondary school physics classroom practices using a Reformed Teaching Observation Protocol (RTOP). Methods: The study followed a quantitative approach with a quasi-experimental design employing cross-sectional survey techniques. The study was carried in 19 secondary schools, both government and private, in Mitooma District, southwestern Uganda. The participants were 419 13th-grade physics students of 2020/2021 school year together with 22 teachers. Professional training in implementing and assessing PBL lessons were offered to some teachers (experimental group), who were compared to those who did not receive the training (control group). The standard and validated international RTOP was used to observe 152 physics lessons. Microsoft Excel 2016 was used to compute descriptive analysis, while IBM SPSS 25 was used to compute inferential statistics. Results: The results indicated that teachers in the experimental group effectively taught their classes using PBL and learners were more active compared to the control group. Female teachers showed a statistically significant difference compared to their male teachers in reformed teaching of physics, while no significance was found between government and private schools. Conclusion: Giving teachers professional training is key to effective classroom practices. We recommend teachers to use PBL in teaching, policymakers train teachers on its implementations, and researchers investigate its effect on other subjects with RTOP or other standard observation protocols.

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