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Kanyesigye, Stella Teddy; Uwamahoro, Jean; Kemeza, Imelda – Research in Science Education, 2023
This study aimed to assess the impact of problem-based learning (PBL) on students' achievement in mechanical waves among secondary schools in South Western Uganda. Four hundred and nineteen students (419) from 19 schools were involved in this study. A quasi-experimental research method was employed through Solomon's four-group design. Form six…
Descriptors: Problem Based Learning, Science Achievement, Physics, Scientific Concepts
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Peffer, Melanie E.; Renken, Maggie; Enderle, Patrick; Cohen, Jonathan – Research in Science Education, 2021
Young children can struggle to learn difficult disciplinary content and important skills for practicing science. Problem-based learning (PBL) may be useful for addressing such difficulties, yet evidence to support its usefulness in elementary school-aged children is limited. We considered the role of a PBL unit in improving students' genetics…
Descriptors: Problem Based Learning, Elementary School Students, Difficulty Level, Genetics