教鞭,课堂教学之辅助工具也。看起来似乎十分平凡,但我对它却有一份特殊的感情,它常常勾起我对学生时代的回忆。小时候我很顽皮,时常在课堂上搞一些恶作剧:趁同学不注意将上学路上捉的蚯蚓放进他们的书包或口袋里,让他们吓一大跳;当老师转身在黑板上写字时,将自己折叠的飞机从 Pointers, classroom teaching aids too. It may seem very ordinary, but I have a special feeling about it, which often reminds me of the memory of the student days. When I was a kid, I was naughty and often practiced some pranks in the classroom: when students did not pay attention to earthworms caught in school, put them in their school bags or pockets, and made them startle; when the teacher turned to write on the blackboard, Folding aircraft from