论文部分内容阅读
一、情景回放录音播题:学校原计划建一座长8米的花圃,后来因实际需要,长增加了3米,宽不变,面积增加了18平方米。问花圃原来的面积是多少?师:谁能解答?由于仅仅播放了一遍录音,绝大多数同学连题目还没听清楚,更别说解答了。然而,出人意料的是一个男孩把手高高举了起来。生1:先用18÷3=6米,求出原来长方形的宽,再用6×8=48平方米,求出原来长方形的面积。学生的回答,出乎教师的意料,教师强装
First, the scene replay recording broadcast: The school originally planned to build a 8-meter-long flower garden, and later because of the actual needs, an increase of 3 meters long, the same width, an increase of 18 square meters area. Ask the flower garden what is the original area? Teacher: Who can answer? Because only played the recording again, most students have not even heard the title, let alone answered. Surprisingly, however, a boy raised his hand aloft. Students 1: first with 18 ÷ 3 = 6 meters, find the original rectangular width, and then 6 × 8 = 48 square meters, find the original rectangular area. Student’s answer, contrary to the teacher’s expectation, the teacher is strongly loaded