浅析全等三角形在教学中的应用

AbstractCongruence is the most important and fundamental method in the two triangleproblems.In addition,in junior high geometry,the study of congruent triangles is akey step in the introduction of geometry.The judgment and nature of trianglecongruence and the quality of learning directly affect the future learning.This paperfirst briefly introduces the judgment and nature of congruent triangle and the basicmodel of congruent triangle.Then it mainly explains the application of congruenttriangle and the common auxiliary line addition of congruent triangle.Finally,it putsforward some Suggestions on congruent triangle for students'learning and teachers'teaching.Keywords:congruent triangle:judgment;property:transformation thought,:application,:junior middle school mathematics