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口算是不借助任何计算工具,依靠思维和语言进行计算并得出结果的一种计算方法,是一切笔算、简算和估算的基础。课程标准强调“要重视口算”。在口算教学中,要注意处理好以下五个关系。一、口算教学应处理好情境与内容的虚实关系新课标指出要“让学生在现实情境中体验和理解数学”。利用生动丰富的情境进行口算教学,有助
Mouth counting is a calculation method that does not rely on any calculation tools, relies on thinking and language to calculate and derives results. It is the basis of all calculations, calculations and estimates. Curriculum standards emphasize “should pay attention to port count ”. In oral education, pay attention to handle the following five relationships. First, the oral arithmetic teaching should handle the relationship between the actual situation and the content of the new curriculum pointed out that “to allow students to experience and understand mathematics in the real situation ”. Use of vivid and rich context for oral calculation teaching, help