Structured Brainstorming Strategies in Improving Critical Thinking Skills and Environmental Attitude of Grade 10 Students

Abstract ―​

This study examines the effects of structured brainstorming strategies — specifically mind mapping and brainwriting — on the critical thinking skills and environmental attitude of Grade 10 students at Gloria Umali Integrated National High School. Using an experimental research design and cluster random sampling, data were collected from 62 students who completed researcher-developed tests and questionnaires. Frequency, weighted mean, and standard deviation were used to analyze pretest and posttest performance, and a paired-sample t-test was employed to assess significant differences. Findings revealed marked improvement in students' critical thinking skills after exposure to both strategies. Brainwriting also significantly enhanced students' environmental attitude, whereas mind mapping did not produce statistically significant changes in this domain. Recommendations include developing interdisciplinary teaching approaches that integrate environmental issues and further exploring brainstorming strategies for students' holistic development.