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(一)教学目标 1.记忆。要求学生记住:①一位数除两位数,十位上的数够除的,要先除十位数上的数。②读除法算式中的两种方法。如26÷2或2),可以读作26除以2,也可以读作2除26。③商和除数相乘,结果等于被除数。要检查除法算得对不对,可以用商和除数相乘的方法来验算。题里要求验算的,要写出验算的竖式。④验算有余数的除法,要把商和除数相乘,再加上余数。⑤一位数除两位数,计算熟练以后,可以不写竖式,直接口算出得数。⑥一位数除多位数,先看被除数的前一位。如果前一位比除数小,就要看前两位。除到被除数的哪一位,就把商写在哪一位的上
(A) teaching objectives 1. Memory. Students are required to remember: ① In addition to double digits of one digit, the number on the top of the tenth should be divided by the number of tens. ② read the division method in the two methods. Such as 26 ÷ 2 or 2), can be read as 26 divided by 2, or as 2 divided by 26. ③ business and divisor multiplied, the result is equal to the dividend. To check whether the division is right, you can use the method of multiplying quotient and divisor to check. The title requires checking, to write out the vertical inspection. ④ Check the remainder of the division, we should multiply the quotient and divisor, plus the remainder. ⑤ a digit in addition to two digits, calculated skilled, you can not write vertical, direct port count. ⑥ a digit in addition to multi-digit, look at the first one to be divided. If the former than a small divisors, we must look at the first two. In addition to which of the divisor, put the quotient on which one to write