今天,数学老师给我们布置了一项特殊的回家作业:根据书本第20页《观察与测量》的内容提示,试着动手做做,并把自己的实验过程、结果和心得体会写下来,完成一篇数学日记。我放学回家,打开书本一看,“哎,太简单了,这还要动手做?”我自言自语道,“只要用我聪明的脑子想一想就行了吗!”我一副自鸣得意的表情。于是,我不慌不忙地想了起来:第一幅图 Today, the math teacher has given us a special homework assignment: according to the book “Observations and Surveys” on page 20, try to do it and write down the experimental process, the results and the experience. Complete a math diary. I went home from school, opened the book, “hey, it’s too simple, do you still have to do it?” I said to myself, “Just think of my smart mind!” I am a smug expression. So, I calmly thought of it: The first picture