数学组题是含有某些共同特征、具有一定关联性内涵、而在解题方法上又具有共通性的一类题.对这类题的解法进行研究,可启迪学生根据问题的多样性所蕴含的规律性,去寻求解决问题的共通性、便捷性的思维,从 The mathematics group questions are a kind of questions that contain some common features and have certain relevance connotations, but have commonality in the problem solving methods.Study on the solution of such questions can inspire students to embody the problem according to the diversity The regularity, to seek to solve the problem of commonality, ease of thinking, from