小学数学的基本任务是培养学生的数学素养,培养数学思维是实现数学素养发展的基本点。良好的思维品质主要包括思维的灵活性、敏捷性、独创性、批判性和深刻性五个方面。其中,思维的深刻性反映了人类思维活动的深度、广度和难度,是一切思维品质的基础。开放题是相对于封闭题来说的,封闭题的条件、解法、答案等是唯一的,而开放题关于条件的描述有:不完备、可以多余等,关于开放题的答 The basic task of elementary mathematics is to train students’ mathematical accomplishment, and to cultivate mathematical thinking is the basic point to realize the development of mathematical accomplishment. Good thinking quality includes thinking flexibility, agility, originality, critical and profound nature of five. Among them, the profound nature of thinking reflects the depth, breadth and difficulty of human thinking activities, and is the foundation of all thinking qualities. Open title is relative to the closed question, the closed question conditions, solutions, answers, etc. are unique, and the open title on the conditions described are: incomplete, you can spare, etc. on the open question