This study aims to analyze the effectiveness of the scientific approach in improving elementary school students' critical thinking skills through a literature review of various relevant studies. The method used was a literature review, analyzing previous research findings related to the implementation of the scientific stages of observing, questioning, gathering information, reasoning, and communicating in learning. The results showed that using the scientific method improves critical thinking skills such as asking questions, analyzing data, drawing logical conclusions, and expressing opinions. This approach has also been shown to significantly improve student learning outcomes, according to several studies. Furthermore, the scientific steps also help develop multiple skills and intelligences in the 21st century. Consequently, the scientific approach is considered effective for implementation in elementary school learning to improve students' critical thinking abilities. To optimize learning outcomes, this study recommends increasing the implementation of the 5M steps, providing varied learning resources, enabling authentic learning, and using process-based evaluation.
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