主要探究了人教版小学数学第七册“数学广角”中烙饼问题的教学设计和课后反思,力求寻找一种最佳的教学设计模式,便于教师在有限的时间内完成教学任务,使教学效果达到最优化。 Mainly explores the teaching design and after-class reflection of the pancake problem in the seventh edition of the PEP Edition of Mathematics in PEPs and seeks for the best teaching design mode to facilitate teachers to complete the teaching task within a limited time, The teaching effect is optimized.