10/11年度升中一:得閑繼續入嚟傾下啦

CrabPincers

原帖由 ppun 於 10-10-19 17:13 發表


同334無關, 你可以去查一下Syllabus, 197?年開始所謂"Modern Maths"的Syllabus 已經有AP同GP. 由於是低年級學,可能你唔忘記了

wakaaaa 甘我又吾係197x 讀中學既........但就真係無印象.............

看完呀女本書都吾明

孖仔媽咪

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[ 本帖最後由 孖仔媽咪 於 10-10-31 20:40 編輯 ]

ppun

原帖由 CrabPincers 於 10-10-19 16:44 發表


上次呀女chapter 1既quiz 就係錯careless, 3既3次方到9........

錯, 唔緊要, 最緊要知錯在那裡, 以後便會小心.

我個仔 1/2 - 1/4 , 佢可以通分母 2/4-1/4, 然後2-1 = 1, 4-4=冇野, 最後答案= 1.
第二天中秋節, 媽咪問佢, 食左幾多個月餅, 佢話食左1/4個, 媽咪問點解少左月餅, 合內原本有半個月餅, 食左1/4個, 點解唔係剩返1個月餅.
佢即刻話, 我會記住啦,分母唔減得

孖仔媽咪

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[ 本帖最後由 孖仔媽咪 於 10-10-31 20:40 編輯 ]

孖仔媽咪

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CrabPincers

原帖由 ppun 於 10-10-19 17:54 發表


錯, 唔緊要, 最緊要知錯在那裡, 以後便會小心.

我個仔 1/2 - 1/4 , 佢可以通分母 2/4-1/4, 然後2-1 = 1, 4-4=冇野, 最後答案= 1.
第二天中秋節, 媽咪問佢, 食左幾多個月餅, 佢話食左1/4個, 媽咪問點解少左月餅,  ...

唉, 最閉佢先x除後加減同埋3既3次方呢d 係成日錯(我偷看佢功課)

CrabPincers

原帖由 孖仔媽咪 於 10-10-19 19:35 發表


頭先我放工返到屋企，即刻攞本atlas畀大孖做功課，點知佢話miss今日話噚日畀嘅功課唔使做喇，即係話我辛辛苦苦撲返嚟嘅嘢又得物無所用喇。

吾會無所用既.....................可以自學架麻
你比著我個仔, 本atlas 可以吾駛1week 爛晒................佢會日揭夜揭

AndyRain

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[ 本帖最後由 AndyRain 於 10-11-18 15:12 編輯 ]

AndyRain

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[ 本帖最後由 AndyRain 於 10-11-18 15:12 編輯 ]

AndyRain

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[ 本帖最後由 AndyRain 於 10-11-18 15:12 編輯 ]

AndyRain

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[ 本帖最後由 AndyRain 於 10-11-18 15:11 編輯 ]

AndyRain

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[ 本帖最後由 AndyRain 於 10-11-18 15:10 編輯 ]

AndyRain

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[ 本帖最後由 AndyRain 於 10-11-18 15:10 編輯 ]

asinai

你地係 mic 教ing unit 12?  

原帖由 AndyRain 於 10-10-19 21:50 發表
same same 啦, 我睇完亞仔本書同睇完佢做既答案, 都完全唔明點解.  

好似睇起黎叫做最易個條

the 1st term is = 3 = 2 + 1 (點解一定要係 2 + 1呀?)
the 2nd term is = 5 = 3 + 2 (點解唔可以係1 + 4呀?)

我剛問 ...

ppun

原帖由 AndyRain 於 10-10-19 21:34 發表
亞sir, 有數想問呀.  (原來我記錯晒亞仔上次功課唔識d 數, ), 原來佢到而家都仲未問亞sir. 激死!!

全部都係:
Find the general term for each of the following sequences.

1)     1/7(份數, 七份之一), 1 ...

        The general term = 1/(3+ 4n)

ppun

原帖由 AndyRain 於 10-10-19 21:36 發表
Find the general term for each of the following sequences.

2) 2/3, 3/5, 4/7, 5/9 ....

The 1st term is = 2/3 = 1/1 + 1/2
The 2nd term is = 3/5 = 2/3 + 1/2
The 3rd term is = 4/7 = 3/5 + 1/2
The 4th te ...

General term = (1+n)/(1+2n)

ppun

原帖由 AndyRain 於 10-10-19 21:37 發表
Find the general term for each of the following sequences.

3) 1, 5/2, 5, 17/2 ....

The 1st term is = 1     = -1/2 + 1  1/2 (1 又 2份1)
The 2nd term is = 5/2 = 1 + 1   1/2
The 3rd term is = 5     = 3 ...

General Term =  (1+Square of n)/2

ppun

原帖由 AndyRain 於 10-10-19 21:42 發表
Find the general term for each of the following sequences.

4) 3, 5, 9, 17, 33, 65

The 1st term is = 3   = 2 + 1
The 2nd term is = 5  = 3 + 2
The 3rd term is = 9   = 6 + 3
The 4th term is = 17 = 13 + ...

The general term = 2^n + 1
that is 2 的n次方+1

[ 本帖最後由 ppun 於 10-10-20 01:07 編輯 ]

ppun

原帖由 AndyRain 於 10-10-19 21:50 發表
same same 啦, 我睇完亞仔本書同睇完佢做既答案, 都完全唔明點解.  

好似睇起黎叫做最易個條

the 1st term is = 3 = 2 + 1 (點解一定要係 2 + 1呀?)
the 2nd term is = 5 = 3 + 2 (點解唔可以係1 + 4呀?)

我剛問 ...

你講得無錯, 3可以係2+1, 亦可以係4-1, 如果寫唔到條General Term, 即係未睇通.

其實呢條是4條之中最深的, 要睇到2的n次方.
如果你試下將後項減前項,
2nd term - 1st term = 2
3rd term - 2nd term = 4
4th term - 3rd term = 8
5th term - 4th term = 16
6th term - 5th term = 32
都是2的幾次方
便可看到它是以2的次方增加的.