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除法是小学数学中比较复杂的计算,人们常常将它按一定顺序分解为一些简单的已知的计算。人们在进行笔算除法的时候,总希望把按一定顺序计算的中间结果和最终结果记录下来,除法竖式就是一种简洁、清晰、准确的记录方式,这才是我们学习除法竖式的本质所在。因而,三年级下册第一单元除法,才会设计11课时去完成两、三位数除以一位数的计算的教学,可见这部分是学生学习的重难点。那么,我们应该采用什么方式讲授这么重要的知识呢?
Division is a more complex calculation in elementary mathematics, and it is often broken down into orders of simple known calculation. People in the pen and brush division, always want to calculate according to a certain sequence of intermediate results and the final result is recorded, the division of the vertical is a simple, clear and accurate way of recording, this is the essence of our learning division vertical . Therefore, the first unit of the third grade under the division, will design 11 hours to complete the two, three digits divided by one-digit calculation of teaching, we can see that this part is the heavy difficulty of student learning. So, what should we teach such important knowledge?