教师评语对学生课堂视觉搜索的影响

The Influences of Teacher's Remark to Students' Visual Search in Classroom

本研究主要探究教师评语对学生课堂视觉搜索的影响。在高中二年级学生完成每节视觉搜索实验后,计算机自动分别给鼓励组、批评组和控制组呈现鼓励、批评和不理睬(不给任何评语)评语。结果发现,无论有、无目标,鼓励组的目标搜索斜率(反应时间对呈现项目数函数的斜率)都最小且正确率最高,而批评组的目标搜索斜率最大且正确率最低。鼓励和批评分别能加快和减慢课堂视觉搜索。因此,教师在课堂教学过程中,应多给予学生鼓励。

This paper mainly probed the influences of teacher＇s remark to students＇ visual search in classroom. After students in senior high school completed visual searches of each part, computer automatous respectively prsented encouragement of encourage group, criticism of criticism group, and ignoring of control group. The experimental results were found that slopes and correct rates of encouragement were respectively the smallest and highest, and slopes and correct rates of criticism were respectively the largest and lowest under absent and present targets. Slope was the function of reaction time to set size. These results indicated that encouragement and criticism could respectively increase and decrease visual search in classroom. Therefore, teacher should give students encouragement in the course of teaching.