【摘要】 本文以系统论和现代教学论为指导 ,给出了知识的深广度的概念 ,以三角形内角平分线性质定理为例 ,论述了分析教材时钻研知识深广度的方法步骤 ,并提出了教学意见更多还原

【Abstract】 This way has been supervised by the systematic theory and modern mathematics and it points out the conceptof knowledge involved in its depth and scope,such as the theory of triangle ap- pearing in the nature of the internal angle’s bisection. Itdisserts the approach the depth and scope of knowledge,and advises the opinion for teaching更多还原