论文部分内容阅读
曾经看到这么一个例子:美国超市里搞啤酒促销,买一箱啤酒打八折,零买不打折。结果中国留学生会整箱的买,而美国人则还是零买。这就反映了中国学生对于数的敏感性很高,因为他们看到这个情境立刻就能感受到整箱的买可以给自己带来更多的实惠。这就是数感给人带来的价值。数感的价值还表现在节省时间上,对于一道可以简便计算的题目,数感好的学生通过短时间的观察,领悟到题目里的规律,用很短的时间就能解决他人也许会用较长时间才能解决的问题。这里一个大家都知晓的例子可以说明。德国著名的数学家高斯在他仅有十岁的时候就用短短几秒
Have seen such an example: the United States to engage in beer sales in the supermarket, buy a box of beer to play 20% off, buy without discount. As a result, Chinese students buy FCL, while Americans still buy zero. This reflects the high sensitivity of Chinese students to numbers as they see the situation immediately recognizing that FCL buying can bring more benefits to themselves. This is the value brought by the number of people. Sense of value is also reflected in the number of time savings, for a simple calculation of the problem, the number of good students through a short period of observation, to understand the laws of the subject, with a very short period of time to solve others may use more A long time to solve the problem. Here’s an example we all know. Gaussian, a famous German mathematician, spent only a few seconds when he was just ten years old