根据已往的经验,在解剖实验课中把观察蛙的外形和内脏解剖合在一起作为一堂课进行是有困难的,主要的是感到时间促迫,因为要学生分组自己动手解剖观察,还要在课堂上填好青蛙解剖空白图,他们的操作又不够熟练,所以常有时间不足或很多同学不能当堂完成作业的情况。因此,我们在上期讲“青蛙的生活方式和外部形态”一节课时,应用了随堂分组观察活蛙外形的方式来进行廛课,这样认为不仅能减轻解剖实验时免去观察外形的负担,能集中精力有更多的时间更好的来观察内脏,而且在讲外形时使学生得到深刻的印象,效果良好。下面作者把进行的方式与过程介绍如下。课前准备:青蛙便于饲养,价格便宜,多可在本期开始时趁它没蛰居以前,发动同学扑捉,有条件时 Based on past experience, it is difficult to combine observation frog appearance and visceral anatomy as a class in anatomical experiment class. The main reason is that time coercion is required. Students are required to dissect and observe themselves in groups, Fill the blank frog anatomy on the map, and their operation is not proficient, so often lack of time or a lot of students can not be done in the proper situation. Therefore, when we talked about the frog’s life style and external appearance in the last issue, we applied the method of sub-grouping the live frogs to class the lecture. In this way, we can not only relieve the burden of looking at the shape when dissecting the experiment, Can concentrate more time to observe the viscera better, and when it comes to appearance to enable students to get a deep impression, the effect is good. The following author describes the way and process are as follows. Pre-class preparation: frogs easy to raise, the price is cheap, more at the beginning of this period while it did not live in seclusion, mobilize students to capture, when conditions