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Enhancing Critical Thinking and Mathematical Achievement Through Problem-Based-Learning: A Classroom Action Research at SMKN 6 Surabaya

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The implementation of problem-based learning significantly improved students' critical thinking skills in mathematics.
Increased average scores in the basic cognitive domain rose from 73.71 to 75.9 after two cycles of intervention.
This classroom action research involved 40 students over three months, employing tests, observations, and questionnaires.
The findings support the effectiveness of structured PBL in enhancing academic achievement in a vocational high school.

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Classroom action research improved mathematical skills and critical thinking in students, indicating PBL's effectiveness.

Mahani et al. (2025) studied this question.

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