新學期在即，除了要忙公司裡的事，當然還有自己的「補習大業」。
翻開新編的高中數學教科書，在第一課看見複數 (Complex numbers) 二字，呆了一呆。
記得栗子妹讀書的年代，複數屬附加數學範疇，後來到自己「執教鞭」時，這個有趣的課題就從課程裡消失了。那一年，小栗拿著兩本附加數學教科書，翻來覆去的找也找不著它，不禁感到絲絲失落。
今次看見「瘦了身」的老朋友，悲喜參半。喜的是新一屆的高中生，終於可以認識複數這個概念；悲的是幾年前的中學生，竟然連這樣的一個基礎課題也無緣認識！課程發展之亂，讓栗感慨。
希望複數重臨，是代表本地課程發展走向美好的新一頁。
is it like "i" ? That's may be the only complex number I know.
回覆刪除[版主回覆08/12/2009 08:35:00]Teacher: i is an imaginary number. They are teaching 'a + bi' in high school now (a and b are real numbers).
早已忘記什麼是複數............
回覆刪除我也不記得什麼是複數了
回覆刪除幾月前《牛頓》有個複數專題，很少有的介紹。
回覆刪除[版主回覆08/12/2009 08:36:00]噫，我有興趣！請問是哪一期的牛頓呢？
香港的教育制度就是如此不堪的了.
回覆刪除[版主回覆08/12/2009 08:37:00]對呀，祈櫻子，現在還要弄個檢毒計劃出來，到學校讀書，似乎變得越來越複雜了。
栗子妹：年事已久 ~ 複數在現實生活中似乎沒有落根之處，以致時至今日已經完全忘記了複數是怎樣的一個學科
回覆刪除[版主回覆08/12/2009 08:38:00]慧行先生：對呀，在早常生活中確實是沒甚麼用，但不教總是令我覺得若有所失。
一時查唔到，係幾個月前的。
回覆刪除[版主回覆08/12/2009 12:26:00]不要緊，我去公共圖書館查。謝！
I vaguely remember this a + bi stuff.
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Before you and your bloggers get too depressed about HK's mathematics education. My estimate is that less than 10% of the US secondary school graduates would even heard of the term "complex numbers", keeping in mind that the US has 3-3-4 system already.
[版主回覆08/12/2009 12:30:00]Teacher: But the topic isn't in the syllabus from the very beginning, right? It's curious that the topic will come back after it disappeared from the A. Maths syllabus several years ago.
And I just realized that equations of straight lines, now in F5 books, are going to be taught in F4 under the new curriculum!
Syllabus? You must be joking!
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There's no syllabus in the US. The 10,000+ school systems do their own things. HIgh school students select each class before each semester begins. The academic types will select all the heavy duty classes, and the non-academic types selecting all fluff, with the vast majority in between the two.