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一、科学审题。把握解题本质解题教学的第一课就是指导学生科学审题。审题就是明确问题,明确已知与欲求,从题目本身获取“怎样解这道题”的逻辑起点、推理目标以及沟通起点与目标之间联系的更多信息。需要审明三点:1.题目的条件及其数学含义。题目的条件是解题的起点,预示“可知”和启发解题手段,并为解题提供行进中的
First, the science review. Grasp the essence of problem solving The first lesson of the problem-solving teaching is to guide students in science review. Examining questions is to clarify the problem, to clarify the known and desires, and to obtain more information about the logical starting point, reasoning goal, and the relationship between the starting point and the goal of communication from the topic itself. Need to examine the three points: 1. Title of the conditions and their mathematical implications. The condition of the title is the starting point of the problem solving, which indicates that “we can see” and inspire the problem-solving means and provide the solution to the problem