Nghiên cứu thiết kế giáo dục về dạy học nội dung “Số và cấu tạo thập phân của một số” cho học sinh lớp 2 khó khăn về tính toán theo tiến trình CPA dựa trên công nghệ hỗ trợ

Tóm tắt

The topic “Numbers and the decimal structure of numbers” provides a foundation for Grade 2 students’ understanding of place value. However, students with dyscalculia often experience difficulties in understanding relationships among place-value positions, identifying patterns in number sequences, and recognizing the place value of digits. This study employed educational design research to identify the difficulties Grade 2 students encounter when learning this topic and, on that basis, to propose an instructional scenario following the CPA progression and integrating assistive technology. Data were collected from Grade 2 students in Ho Chi Minh City, their classroom teachers, and two evaluators. The findings showed that the students had difficulties understanding relationships among place-value positions, identifying patterns in number sequences, and recognizing the place value of digits. Based on these findings, an instructional scenario following the CPA progression and integrating educational software was developed. The preliminary findings suggest that the proposed design has an anticipated level of suitability and feasibility, providing a foundation for further refinement and evaluation in subsequent studies.