Online Media and Business
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Before the advent of the internet, access to large audiences was restricted to a select few media outlets. Newspapers, broadcasters magazines, and production houses controlled the majority of media that people consume...
The Technologies of the Future and How They Affect the Workplace
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Technology is changing our lives in a constant rate. From smartphones to robots, we are always connected and able to http://technologyactive.com/the-relationship-between-business-technology-and-customer-experience/ st...
How to Select VDR Providers
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Virtual data rooms simplify due diligence, collaboration and signing to help deals advance faster. They offer features like about his advanced security, full-text search real-time analysis mobile access, centralized c...
Corporate Travel Arrangements
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Corporate travel arrangements enable companies to send employees to locations across the nation and around the world for business purposes. These trips can provide networking opportunities, sales and business developm...
优点：板书工整简洁，题目讲解详细。
缺点：有些地方可以讲解可以快点，注意详略得当。有些证明可以让学生自己试试。
导入与旧知识联系紧密又可以引出新知识；原理的讲解逻辑清晰；
PPT字体可以适当加大；板书可以标出本节课的重点内容；讲解可以加入与学生的互动或者设置问题，不至于太过枯燥
优点：结合所学正弦定理的知识，通过一个例题的讲解引出余弦定理，板书演示过程，详细完整。
缺点：缺少与学生之间的互动。
优点：用多种方法讲解定理，讲解的很清晰。
缺点：与学生互动少，可以适当的给学生留下思考的时间。
导入回顾旧知识，用一个题目的另一种方法引入今天的课题，证明讲解中剩下的俩种三角形可以让学生自己探索。板书清晰，让学生想想有没有别的方法时，向量法可以多一些引导，一般不容易想到这种方法
余弦定理的讲解非常地充分，运用了各种不同的方法，充分利用了分类讨论这一数学思想方法。
课题的引入略显烦闷，缺乏趣味性，板书过多，许多计算过程完全可以用ppt现实出来。上课语言需要更有起伏性，更有激情。
证明方法多种，却没有主次，着重讲一个证明，带领学生一起思考，一起探索。如果只是将证明过程刻板地呈现出来，比较枯燥，也不容易让学生掌握，而只是记住结论。