案例一一个两幅图的情境。第一幅图的荷叶上有38只青蛙,第二幅图的荷叶上有5只青蛙。很显然,是求跳走了多少只青蛙。课堂上,第一名学生叙述情境后,教师鼓励该学生“语言流畅,想象力丰富”,第二名学生叙述了另一种情境,教师鼓励该学生“你的想象真棒”。当教师想让学生看图列式 Case one two pictures of the situation. There are 38 frogs on the lotus leaf in the first image and five frogs on the lotus leaf in the second image. Obviously, how many frogs to jump off? In the classroom, after the first student described the situation, the teacher encouraged the student to be “fluent in language and rich in imagination.” The second student described another situation. The teacher encouraged the student to “awake your imagination.” When teachers want students to see the picture