“相遇问题”教学体会黟县碧山中心小学卢永良《大纲》指出：小学数学教学要使学生理解掌握数量关系，培养学生初步的逻辑思维能力和空间观急，使学生能运用所学知识解决简单的实际问题。教学时要重视学生获取知识的思维过程，通过操作、观察，引导学生分析、比较、综合，... “Encounter problems” teaching experience Lizong Bishan Central Primary School Lu Yongliang “Outline” pointed out that: primary mathematics teaching to enable students to understand the relationship between the number of students to develop the ability of logical thinking and space anxious so that students can use their knowledge to solve simple The practical problem. Teaching should pay attention to the students acquire knowledge of the thinking process, through the operation, observation, guide students to analyze, compare, synthesize, ...