瓶颈,一般用来形容事业发展中遇到的停滞不前的阶段,这个阶段就像瓶子的颈部一样是一个狭窄的关口,再往上便是出口,但是如果没有找到突破的方向,就有可能较长时间被束缚在瓶颈状态.目前数学新授课中普遍重视新知引入情境的创设,此时学生受好奇心和新鲜感的驱使,兴致盎然,能较快接受新的概念、法则、定理等表象内容,但由于一个短暂的兴奋期过后,他们对相关知识外延和内涵的掌握往往会陷入类似瓶颈的状态,此时学生的学习思维会处于一个相 The bottleneck is generally used to describe the stagnant stage encountered in the development of a business. This stage is like a bottleneck in the bottleneck, which is a narrow pass, and then upward to the exit. However, if no breakthrough is found, there is May be bound for a long time in the bottleneck state.Now the new math teaching generally attaches importance to the creation of new knowledge into the situation, this time driven by curiosity and freshness, students are excited and can quickly accept new concepts, laws, theorems, etc. However, due to a short period of excitement, their knowledge of the extension and connotation of knowledge often fall into a similar bottleneck state, when students' thinking in learning will be in a phase