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在学习植物的根和茎这课内容时,为了证明植物的茎具有输送水分和养料的功能,我跟学生采用了教材上的方法,(不过当时我身边没有红墨水,就用黑墨水代替了)。我把黑墨水滴了一些在水里,把带茎的丝瓜花放入黑墨水中。然后学生预测过了一天,原来黄色的丝瓜花会变成黑色,当时我也是这样想。于是我决定把这实验装置放在教室里供学生观察,以加深他们的印象。第二天课间,我去教室看效果时,学生纷纷嚷嚷,马上跑到我身边对我说:花朵根本没变黑色,只是花枯
When I was studying the roots and stems of plants, I used a teaching method with the students in order to prove that the stems of plants had the function of transporting moisture and nutrients. (However, when there was no red ink beside me, black ink was used instead ). I dropped some black ink in the water and put the stem-loofah flower in black ink. Then the students predicted a day, the original yellow loofah flowers will turn black, then I think so. So I decided to put the experimental device in the classroom for observation by students to deepen their impression. The next day in class, I went to the classroom to see results, the students shouted, immediately ran to me and said to me: flowers did not change black,