今天看到yahoo头条说几天前的2009年新加坡小学毕业考(俗称PSLE)的数学题“极难”，导致家长学生叫苦不迭。
我在网上找了一下今年的题目，发现的确是难，新加坡小学也是不教代数的，不可以设X。
大家有兴趣的话看看吧。这只是小学毕业考试，看来新加坡的孩子也是没有童年的那种。


这个是著名的被头条登出的Jim和Ken的问题。
Jim bought some chocolates and gave half of it to Ken. Ken bought some sweets and gave half of it to Jim. Jim ate 12 sweets and Ken ate 18 chocolates. The ratio of Jim's sweets to chocolates became 1:7 and the ratio of Ken's sweets to chocolates became 1:4. How many sweets did Ken buy?.
Ans: 68 sweets

下面这个自行车的问题也难，
Mei and Lin were in a bicycle race. Mei was travelling at a constant speed of 20km/hr and they both did not change their speed. When Lin completed half the race, Mei was 3.5km ahead. Mei completed the race at 10.45am. What time did Lin complete the race?
Ans: 11.06am


下面几道题还算可以，但整个paper整体难度的确很高。
Sally baked some cookies to sell. 3/4 of them were chocolate cookies and the remaining were almond cookies. After she sold 5/6 of chocolate cookies and 210 almond cookies, she had 1/5 of the cookies left. How many cookies did she sell?
Ans: 960


Curry puff shop sells puffs at $0.80 each. Offer:Buy 3 get 4th half price. If customer has $50, how many puffs can he buy if he buys as many as he can.
Ans: 71 puff


String of 2 big balloons is 90cm
String of 5 small balloons is is 1.2m
If both strings are of the same length, there would be 105 more small balloons than the big balloons. How many balloons are there altogether?
Ans: 345


6 friends decided to rent computers from 2pm to 4.30pm. While 4 of them were playing, the other two would watch. If the cycle continues, and each of them played for equal number of minutes, how many minutes will each person get to play?
Ans: 100 minutes

如图：ABCD是正方形，GH平行于AD，EF垂直于GH。现在知道FG=FE=FH。求角GEH的大小

把我骗了。。。。答案是150吧。。。我超没自信的。。。

我发现真是脑袋不好用了，这些问题我居然要想一下才能做出来，哎

知道了是等边三角形对答案没有直接影响，而且不需要证明是等边三角形。。。。。

奥数的基础题拿来做大众的压轴题，或者bounus还算可以接受。如果每道题都这样就变态了。

等边三角形只是副产品

对小学生太残忍了~~~

2人都30+年纪，然后他们得出一个结论---还是别要小孩了，没办法教

两个同事，自己都是在中国受的教育，孩子在这边教育。一个俩孩子上小学，一个俩孩子上中学。成绩有好有坏。不管好坏，全都说这边的教育不打基础，只重浮华，误人子弟，远不如中国。看这卷子就知道了。可笑的是还自觉水准很高！这么多人做不出呢！我是打定主意不让小孩在这边上学了。怕越学越傻。
教育的目的是什么？在中国，是让大多数人学到知识，打好基础。在这边，只为了挑选那100个里面的一个所谓精英。其余的人全部抛弃。我同事的感触。

看心态了 唉

就像熊猫说的，哪里都一样，国内的考试不也是选拔精英么，考试里有2-3道难题很正常，又没指望所有人都会答。

不过这边有些教学方法确实有待商酌。。。那个76 candy的问题，这边人用什么block method分析，真是把简单的事情变复杂，哎

当然，现在国内00后的小学生是怎样的，我也不清楚。反正有一点是肯定的，从小学就互相攀比名牌，比谁知道的车牌子多。

你只能画方块，连改成线段都不可以。

花一个方块要很久的。。。>_<

原因是我用国内的方法做，当时已经尽量考虑到这种差异性，所以完全不跳步，每个步骤都写的非常仔细。但没用，就是批你错。

当然大学里没这个问题。