小学生自主提问时存在的问题主要是缺少数学思考、缺乏思维广度、缺乏思维深度。自主提问的改进策略主要有:营造氛围,鼓励学生敢问;抓住时机,引领学生会问;积极评价,促使学生乐问。 The primary problems students have when they ask questions are mainly lack of mathematical thinking, lack of breadth of thinking and lack of depth of thinking. Self-improvement strategies are: to create an atmosphere to encourage students to dare to ask; seize the opportunity to lead the students will ask; positive evaluation, prompting students to question.