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本课是在学生已经掌握了整十数乘整十数的口算,两、三位数乘、除以一位数,以及两位数乘两位数笔算的基础上,教学除数是整十数商是一位数的口算和笔算的(表内除法的扩展)。教学的重点是笔算两、三位数除以整十数商的定位方法。本课将创设学生喜欢的数学问题情境,将以学生为主体,让学生先行探索,通过独立思考、合作交流掌握算理和算法,让其在解决实际问题的过程中探索、掌握和应用算法。
This lesson is based on the fact that students have mastered the whole number of ten decimal places, multiplied by two or three, divided by one digit, and double-digit multiplied by two digits. The teaching divisor is the whole number of ten Quotient and pen count (quotient expansion). Teaching is focused on two or three digits, divided by the whole number of business positioning method. This course will create situations that students like math problems and will take students as the main body, let students explore first, master algorithms and algorithms through independent thinking, cooperation and exchange to master maths and algorithms to solve practical problems.