Phát hiện và sửa chữa sai lầm trong dạy học giải bài toán thực tế nội dung “hệ phương trình bậc nhất hai ẩn” (Toán 9)

Tóm tắt

Mathematics plays a foundational role in general education and significantly contributes to the development of students’ thinking and problem-solving abilities. However, in classroom practice, the activity of identifying and correcting errors has not been fully utilized, particularly in real-world problems involving systems of linear equations in two variables in grade 9. This paper aims to clarify the theoretical foundations of this activity and propose ways to apply it in teaching this content. Drawing on theoretical research and analysis, the paper discusses perspectives on identifying and correcting errors in mathematics education and examines the teaching content of systems of linear equations in two variables. The findings propose a four-step process and instructional strategies that support students in recognizing and correcting errors when solving real-world problems, thereby contributing to improving the effectiveness of teaching this topic.