一位学者在谈到教学情境问题时曾经打过这样的一个比方:将15克盐放在你的面前让你把它吃下去,可以想象你是很难完成这个任务的,即使完成了也会感觉不舒服,如果每天都要你这样吃盐,你一定是非常痛苦的。但是,如果将15克盐放在一碗美味可口的汤当中,你就会在享用美食的时候,不知不觉地将 One scholar once talked about teaching situation questions such as the analogy: put 15 grams of salt in front of you so that you can eat it, you can imagine you are very difficult to accomplish this task, even if completed Feel uncomfortable, if you eat salt every day, you must be very painful. However, if you put 15 grams of salt in a bowl of delicious soup, you will enjoy the food, unwittingly