【观察】教师通过多媒体出示一幅图:方格纸上,一只帆船,船头有一只紫色的小鸟,船尾有一只红色的小鸟。船向右平移了6格。红鸟说:“我走的路多。”紫鸟说:“我走的路多。”问小朋友:你们能做一个裁判吗?(生答略,三种观点都有) 【Observations】 Teachers to produce a picture through multimedia: graph paper, a sailboat, the bow has a purple bird, a red bird at the stern. The boat is shifted to the right by 6 squares. Red Bird said: “I walk more.” The purple bird said: “I go a long way.” Asked the children: can you do a referee? (Health answer, there are three views)