今天数学课我们认识角,我心想:这还不简单吗,角到处可见,我早就认识了。这样想着我就把手举得高高的,老师让我到讲台上指出多媒体上三角形的角,老师把我指的地方画下来,原来是三个点,这是为什么呢?老师又让另一个同学上来指,我认真地看着,他除了我指的地方,还指出了两条线,老师把他指的地方也画下来。原来 Today, we know the mathematics corner, I thought: Is this not easy, the corner can be seen everywhere, I have long known. So think I put my hand up high, the teacher let me to the podium point out the corner of the triangle on the multimedia, the teacher painted the place I refer to, turned out to be three points, which is why? The teacher let the other The classmate came up and said, "I took a serious look at him. Apart from the place I refer to, I also pointed out two lines. The teacher also painted the place where he was referring. original