掌握万以上数的大小比较的方法,学会大数的改写。
教学流程大致如下:
根据教材的编排特点,确定本节课的教学目标为:
1.掌握万以上数的大小比较方法,经历比较方法的形成过程,培养知识迁移和归纳概括的能力。
2.会把整万整亿的数改写成用万或亿作单位的数。
3.培养主动探究的精神和用数学的意识。
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