在数学中,“等”和“不等”是既对立又统一的,并且具有很多相似的性质,相互关联着.充分理解并运用“等”与“不等”的辩证关系,能大大地拓展学生的思维层次,提升学生的解题素养.一、利用等号成立条件导出相等关系数学中有些相等问题也可以用不等知识来解决.运用均值不等式中等 In mathematics, “equality” and “inequality” are both antitheses and unities, and they have many similarities and are interrelated.The full understanding and application of dialectic relations between “equal” and “unequal” can greatly expand Students ’thinking level, improve the students’ problem solving qualities First, the use of equal conditions for the establishment of the same conditions to derive equal relationship Some of the same mathematical problems can also be solved with unequal knowledge using the mean inequality