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教学目标①结合具体情境,探索并掌握长方形周长的计算方法;②能正确计算长方形的周长;③能运用长方形周长的计算方法解决实际生活中的简单问题,感受数学在日常生活中的运用。
Teaching objectives ① combined with specific situations, to explore and grasp the calculation method of rectangular perimeter; ② can be accurately calculated perimeter of the rectangle; ③ can use the calculation of rectangular perimeter to solve simple problems in real life, feel mathematics in daily life use.