“轴对称图形”是人教版小学数学二年级上册第五单元“观察物体”的内容。教学目标是:通过观察、操作,初步认识轴对称现象,并能在方格纸上画出简单的轴对称图形;发展空间观念,培养观察能力和动手操作能力,学会欣赏数学美;通过探究活动,激发学习的热情,培养主动探究的能力;感受对称图形的美,学会欣赏数学美。 “Axisymmetric graphics ” is the content of the fifth unit of the PEP secondary school mathematics edition “observation object ” content. The teaching objectives are: to understand the axisymmetric phenomenon through observation and operation, and to draw simple axisymmetric graphics on the squared paper; to develop the concept of space, to develop observation skills and hands-on skills, to learn to appreciate mathematical beauty; , Stimulate the enthusiasm of learning, develop the ability to actively explore; feel the beauty of symmetrical graphics, learn to appreciate mathematical beauty.