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估算是一种粗略计算方法,一些无法准确计算以及没有必要准确计算的数量就需要通过估算来计算,此计算方法不仅方便,快捷,还在生活中较为常见,是一种重要的计算方法,学习好估算方法具有重要意义。因此,培养学生估算技能,教授学生估算技巧,提高学生估算能力十分重要,是小学数学教学中的重点内容,研究小学数学估算教学策略,提高估算教学效果具有重要价值。一、结合具体情境,实施估算
Estimation is a rough calculation method. Some calculations that can not be accurately calculated and not calculated accurately need to be calculated by estimation. This calculation method is not only convenient and fast, but also common in daily life. It is an important calculation method. Learning Good estimation method is of great significance. Therefore, it is very important to train students in estimating skills, teaching students ’estimation skills and improving students’ estimation ability. It is a key point in elementary mathematics teaching. It is of great value to study teaching strategies of mathematics estimation in primary schools and to improve estimation of teaching effects. First, with the specific situation, the implementation of estimates