泰戈尔曾经说过“不是槌的打击,乃是水的载歌载舞,使鹅卵石臻于完美.”这话落实到数学教学中就是,少一些“槌”一样的直接灌输,多一些“水”一样的情境设置;少一些“他者”的技巧演示,多一些自身的动手操作;少一些原地踏步,多一些拓展延伸.为使教学目标这枚“鹅卵石”臻于完美,教师应该下大功夫引 Tagore once said that “it is not a mallet, but a song and a dance of water to perfection in a pebble.” This is done in mathematics teaching, with less direct instillation, more “ Water ”the same situation settings; less “ others ”skills demonstration, more some of their own hands-on operation; less time to go, some more extension .In order to make the teaching goal of this“ pebbles ”Zhen In perfect, teachers should make great efforts