Application effect of flipped teaching mode based on network platform in ultrasonic imaging teaching
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摘要:
目的 探讨疫情期间基于网络平台的翻转教学模式在超声影像学中的应用效果。 方法 2020年3—5月，于2018级影像专业的5个班级中随机抽取2个班级，分为观察组(共有学生35人)和对照组(共有学生35人)。选取《超声影像学》课程中相同章节作为教学内容，带教老师相同，网络课堂授课时间相同。对照组采用常规的网络教学模式；观察组采用基于网络平台的翻转教学模式，课前安排学生自主学习，课堂由学生主导，提出问题教师解答并参与讨论。教学结束后，对学生理论知识掌握情况及超声图像判别能力进行考核，考核通过网络平台完成，比较2组学生掌握并应用知识的能力。对2组学生进行网络问卷调查，调查内容为授课满意度，搜集学生对授课过程的具体意见和建议，比较2组学生满意度评分情况。 结果 理论考试结果和图像识别考试结果对照组与观察组差异有统计学意义(均P＜0.05)，观察组分数高于对照组。对照组满意度高于观察组，2组差异有统计学意义(P＜0.05)。2组学生分别反馈了2种网络教学模式的意见和建议。 结论 基于网络平台的翻转教学模式在《超声影像学》课程中有较好的应用效果，有助于提升学生理论知识水平和图像判别能力，但是教学内容和考核方法需与教学模式相匹配，网络平台的技术支持仍需与大规模的网络教学相适应。 Abstract:Objective To explore the application effect of flipped teaching mode based on network platform in the teaching process of ultrasonic medicine during the coronavirus outbreak. Methods Two classes of sophomores selected randomly from the 5 classes majoring medical imaging from March to May 2020, which divided into control group (35 students) and observation group (35 students), were involved in this study. The 2 groups were respectively taught the same content with the same teacher. The control group was taught by the conventional teaching mode and the observation group was taught by the flipped class mode. In the observation group, the students independently studied the content arranged by the teacher before class, then played a leading role during online class with discussion and questioning. Meanwhile the teacher only responsible for answers and guidance. After class, the theoretical sore and the image recognition score were graded online and compared between the two groups to evaluate the learning outcome. The satisfaction degree with the teaching process were evaluated online and compared between the two groups. Comments and suggestions were also gathered after class. Results The theoretical score and the image recognition score in the observation group were higher than that in the control group with statistical significance (P < 0.05). The satisfaction degree was higher in the control than that in the observation group with statistical significance (P < 0.05). The two groups offered comments and suggestions on the teaching mode. Conclusion The flipped teaching mode based on the network platform has a good application effect in the course of ultrasonic imaging, which helps to improve the students' theoretical knowledge level and image discrimination ability. However, the teaching content and assessment methods need to match the teaching mode, and the technical support of the network platform still needs to adapt to the large-scale network teaching. -
Key words:
- Web platform /
- Flipped teaching mode /
- Ultrasound imaging
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表 1 2组学生一般情况比较
组别 例数 年龄(x±s，岁) 性别(例) 大一综合测评(x±s，分) 男性 女性 对照组 35 17.94±0.91 17 18 89.96±3.43 观察组 35 17.97±0.89 18 17 89.23±2.83 统计量 0.139a 0.057b 0.971a P值 0.890 0.811 0.335 注：a为t值，b为χ2值。 
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表 2 2组学生考核成绩及满意度比较(x±s，分)
组别 例数 理论考试成绩 图像识别考试 满意度 对照组 35 86.06±3.63 71.14±9.63 3.89±1.16 观察组 35 88.74±4.89 75.71±8.84 3.20±1.23 t值 2.603 2.068 2.414 P值 0.009 0.042 0.019
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