XÂY DỰNG VÀ TRIỂN KHAI ĐÁNH GIÁ BÀI THÍ NGHIỆM ẢO “ĐỊNH LƯỢNG CHLOROPHYLL BẰNG PHƯƠNG PHÁP QUANG PHỔ” TẠI TRƯỜNG ĐẠI HỌC NHA TRANG

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Tác giả: Vũ Thịnh Đoàn, Thị An Khúc, Tấn Phát Nguyễn, Hồng Cầm Văn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học - Trường Đại học Sư phạm Hà Nội: Khoa học Giáo dục, 2023

Mô tả vật lý: tr.186

Bộ sưu tập: Metadata

ID: 342269

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Nghiên cứu tập trung vào xây dựng, triển khai và đánh giá việc sử dụng bài thí nghiệm sinh học ảo “Định lượng chlorophyll bằng phương pháp quang phổ” so với phương pháp giáo dục truyền thống (thực hiện tại phòng thực hành với đầy đủ các trang thiết bị, vật dụng và quy trình cụ thể). Các mô hình 2D và 3D của thiết bị - vật dụng trong bài học được thiết kế dựa trên các công cụ đồ họa (Blender, Adobe Illustrator). Các chuyển động, thao tác và tình huống của bài thí nghiệm ảo (virtual experiment - VE) được mô phỏng bằng phần mềm Unity. Bài VE dựa trên nền tảng e-learning được triển khai trong sinh viên với 2 nhóm khác nhau: nhóm 1 được trải nghiệm VE trước giờ học thực hành và nhóm 2 thực hiện bài thí nghiệm khi chưa trải nghiệm VE. Kết quả triển khai trong sinh viên cho thấy nhóm 1 có điểm kiểm tra trung bình cao hơn trong việc hiểu khái niệm, định nghĩa, các bước của bài thí nghiệm cũng như các lưu ý sử dụng thiết bị trong phòng thí nghiệm so với nhóm 2 (p <
0,05). Các sinh viên ở nhóm 1 cũng tự tin hơn trong việc thực hiện các kĩ năng về quy trình khoa học cũng như có khả năng tiếp thu kiến thức tại phòng thí nghiệm cao hơn Nhóm 2 (p <
0,05). Các sinh viên ở nhóm 1 đánh giá cao các tiêu chí về lợi ích của VE trong việc ghi nhớ khái niệm, các bước của bài thí nghiệm, giúp nhận ra các lỗi sai thường gặp trong quá trình thí nghiệm (p <
0,05). Tuy vậy, VE vẫn không thể thay thế bài thí nghiệm sinh học “thật” trong việc nâng cao kĩ năng thao tác của người học. Kết quả nghiên cứu cho thấy VE có thể trở thành một công cụ mạnh để phối hợp với phương pháp giáo dục truyền thống trong việc đào tạo sinh viên các kĩ năng phòng thí nghiệm sinh họcThe study focuses on the development, implementation, and evaluation of the use of the virtual biology experiment of "Quantification of chlorophyll by spectroscopy" compared with the traditional educational method (hands-on laboratory labs, which involves physical presence, procurement of equipment, specific materials, and procedures). 2D and 3D models of equipment in the lesson were designed based on graphic tools (Blender, Adobe Illustrator). The movements, manipulation and troubleshooting of the virtual experiment (VE) are simulated using the Unity engine. The web-based VE was developed and evaluated the impact of VE by comparing a group of deployed students (Group 1) with a group of non-implemented students (Group 2). The results of implementation in students show that Group 1 had higher average test scores in understanding the concepts, definitions, steps of the experiment, and notes on using laboratory equipment compared to Group 2 (p<
0.05). The students in Group 1 were also more confident in performing skills in scientific procedures as well as the ability to acquire knowledge in the laboratory was higher than in Group 2 (p<
0.05). The students in Group 1 highly appreciated the criteria of the benefits of VE in memorizing concepts, steps of the experiment, and helping to recognize common mistakes during the experiment (p<
0, 05). However, VE still cannot replace the "real" biology experiment in improving learners' manipulation skills. Research results showed that VE can become a powerful tool to cooperate with traditional educational methods in training students in biological laboratory skills.

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