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数学课上。“同学们,我们学习了很多生活中常见的百分数,比如折扣、税率、浓度等等。你们能不能想到一些其他用百分数表示的量呢?”“我知道!”哈利波波举起手,“体脂率是人体脂肪的质量占人体总质量的百分比。体育老师说我的体脂率就很低。”“非常好。”老师点点头继续问,“还有同学回答吗?”班里沉默了几分钟。“既然一时想不到,那这个问题就留作课后作业。看谁能想到更加新奇的答案。明天数学课我们再来讨论吧。”说完老师就下课了。放学后,同学们翻书、上网、咨询父母,最后都准备了自己的答案。
Math class. “Classmates, we learn a lot of common percentages in life, such as discounts, tax rates, concentrations, etc. Can you think of some other percentages?” “I know!” Harry Potter Raise your hand, “The body fat percentage is the percentage of body fat mass that contributes to the total body mass.” The physical education teacher said my body fat percentage is very low. “” Very good. “The teacher nodded and asked, Some students answer it? ”The class was silent for a few minutes. “If you can not think of it for a while, then this question will be left for homework. See who can think of more novel answers. Let’s talk about math tomorrow.” After school, the students open the book, surf the Net, consult their parents and finally prepare their own answers.