翻開中五的數學課本，發現新高中的數學課程，既難學，又難教。
難學之處，在於因課程時間延長而衍生出來的「深奧」課題。例如排列
(permutation)，在栗的記憶中，從未在本地數學課程出現過。本來多學一種東西是好事來的，但以今日學生的資質，栗覺得還是多一事不如少一事。
至於難教之處，在於課題分佈不均。例如「續多項式」一課，竟然把指數方程
(exponential equations)、對數方程 (logarithmic equations) 和三角方程 (trigonometric
equations) 全堆在一起。天呀，有多少學生連基礎對數和三角函數也還未學好，要他們在同一課學了這幾種方程，這不是苦了(補習)老師嗎？
不過方程還算是小事，概率
(probability) 那課中 and、or 與 not 的符號，才真的要了栗的命。我到現在還弄不清正U和反U呀……
do they also talk about "combination", the cousin of "permutation"?
回覆刪除[版主回覆09/12/2010 07:56:00]Yes, Teacher. But combination is covered in the Additional Maths syllabus (together with the Binomial Theorem) as long as I can remember. That was why I did not include it in this entry. About the U and inverted U symbols, I recall that they were from the set theorem I learnt in Pure Maths. I don't know why the curriculum include such symbols in the compulsory section. They accepted P (A and B) / P (A or B) in the past!
U = universe (omega), or union, like "or" ??
回覆刪除中五? HK math does seem any more advance than US.
回覆刪除[版主回覆09/14/2010 08:07:00]其實我唔明，點解中國人學數，要比外國人學得更深？
因為英文唔好? 選擇少咗.
回覆刪除[版主回覆09/15/2010 06:08:00]Maybe.
指數方程 (exponential equations) 、對數方程 (logarithmic equations) 和三角方程 (trigonometric equations) 等 方程， 或然率 (probability)不是中六 ( Advanced Level) 數學嗎？ 沒有良好的數學基礎就來這一套，豈非椽木求魚？
回覆刪除[版主回覆09/15/2010 06:12:00]乏言先生：確實，很多學生的基礎不穩，一次過學三種真的吃不消。 這三種方程一向在會考課程之內，我讀中六、七時，已經要學system of equations, matrix 等課題。 又：現在的新高中課程，甚麼東西都炒埋一碟，令人難受
Ok, U is union and inverted U is intersection, yes?
回覆刪除我的記憶法 反U 好像N 所以是AND 有空來交流1下 我也是中學數學老師 mryip06@gmail.com
回覆刪除[版主回覆01/21/2011 08:17:00]多謝葉 sir 教路, 現在記到了
會會會, 一定常來交流 :)