借助“片段异构”,加深对新课标理念的认识——正弦定理“同课异构”反思

从人教社A版必修5第一章《解三角形》第一节对正弦定理教学的设置出发,结合"同课异构"在学校教研活动中的应用,提出了对新课标的三个方面的认识:一是情境创设需要联系实际;二是公式推导需要突出过程;三是例题讲解需要暴露思维。

Deepening Comprehension of Concepts in New Curriculum Standards through “Teaching Activity”——Reflection on Sine Theorem in Teaching Activity “the Same Lesson with Different Teaching Methods”

This article deals with the Sine Theorem in the version A of compulsory course,velum 5 published by people’s Education Press.It is the fist section in chapter 1."Solving Problems about Triangle".The article proceeds from the Sine Theorem,combined with "The same lesson with different Teaching Methods" activity held by school,bringing up new interpretation about the new curriculum standards in three aspects:First,the assumed situations should be related to reality.Second,in formula derivation,emphasis should be placed on process.Third,the way of thinking should be embodied in explaining the examples.