《课程标准(2011版)》明确提出:推理能力的发展应贯穿在整个数学学习过程中.推理一般包括合情推理和演绎推理,合情推理是从已有的事实出发,凭借经验和直觉,通过归纳和类比等推断某些结果;演绎推理是从已有的事实(包括定义、公理、定理等)和确定的规则(包括运算的定义、法则、顺序等)出发,按照逻辑推理的法则证明和计算.以苏科版教材为例,“定义、 Curriculum Standard (2011 Edition) clearly states that the development of reasoning ability should be run through the whole process of mathematics learning.Generation generally includes co-rationing reasoning and deductive reasoning, co-rationing reasoning is based on existing facts, by virtue of experience and intuition, Some conclusions are deduced through induction and analogy. Deductive reasoning is based on the existing facts (including definitions, axioms, theorems, etc.) and the established rules (including the definition, rules and order of operations, etc.) and according to the law of logical reasoning And calculations. Su Ke version of textbooks, for example, ”definition,