今天,老师教会我们量角后,要我们四人小组每个成员各画一个任意角,然后用量角器量角的度数。量完自己画的角后,在小组内再交换量别人画的角,看大家量的角的度数是不是一样。我量出我画的角的度数是67°,就先和同桌交换量对方的角。我刚要量她画的角,就听她叫道:“家伦,你量错角了,你 Today, after the teacher taught us to measure the horns, we asked each member of our group of four to draw an arbitrary angle and then use the degrees of the protractor. After the amount of his painting of the angle, in the group and then exchange the volume of others to draw the angle, we see the amount of angle is not the same degree. I measured the angle of my painting is 67 °, the first exchange of the same table and the other side of the angle. I just measure the angle of her painting, I heard her exclaimed: ”Lun, you amount wrong angle, you