一：數學不只問「有多少」53Please respect copyright.ＰＥＮＡＮＡQKehpzw6SF
上一課我們問過：53Please respect copyright.ＰＥＮＡＮＡoSQMAvfz9k
> 「這裏有多少個？」53Please respect copyright.ＰＥＮＡＮＡjuRuFYUImJ
今課開始問另一種問題：53Please respect copyright.ＰＥＮＡＮＡzi0ahHGwko
> 「哪個較多？」「哪個較少？」「是否一樣多？」53Please respect copyright.ＰＥＮＡＮＡQFNw7dA3zK
例如：53Please respect copyright.ＰＥＮＡＮＡRnKhCOYfkx
> 🍎🍎🍎53Please respect copyright.ＰＥＮＡＮＡyTqCgqwNnA
> 🧃🧃53Please respect copyright.ＰＥＮＡＮＡV9K22SP4uE
你不只可以說：53Please respect copyright.ＰＥＮＡＮＡ17wv4bSxjb
> 有 3 個蘋果、有 2 盒果汁53Please respect copyright.ＰＥＮＡＮＡPchEXaB707
你也可以比較：53Please respect copyright.ＰＥＮＡＮＡdYv1ugwFnP
> 蘋果比果汁多。果汁比蘋果少。
這就是今天的主題：53Please respect copyright.ＰＥＮＡＮＡguVNHArUU1
> 比較 | Comparison53Please respect copyright.ＰＥＮＡＮＡgSeCurDrM0
二：多、少、相等53Please respect copyright.ＰＥＮＡＮＡ3UnfTYm1uH
當我們比較兩組物件時，可以有三種結果。
1. 多於 | More53Please respect copyright.ＰＥＮＡＮＡDLHri93Qp0
如果 A 組比 B 組多，我們會說：53Please respect copyright.ＰＥＮＡＮＡRjs0ah1tji
> A 多於 B | A is more than B
例如：53Please respect copyright.ＰＥＮＡＮＡb7NUlpqz85
> 🐱🐱🐱53Please respect copyright.ＰＥＮＡＮＡ5qKwJuNFXl
> 🐟🐟53Please respect copyright.ＰＥＮＡＮＡdSX57BQA4B
貓有 3 隻，魚有 2 條。
所以：53Please respect copyright.ＰＥＮＡＮＡZQieTVYCCv
> 貓多於魚。53Please respect copyright.ＰＥＮＡＮＡ694719aMG3
//
2. 少於 | Less than53Please respect copyright.ＰＥＮＡＮＡayLOURCpPc
如果 A 組比 B 組少，我們會說：53Please respect copyright.ＰＥＮＡＮＡZRUW9bFlyb
> A 少於 B | A is less than B53Please respect copyright.ＰＥＮＡＮＡXdTuxJxN0f
例如：53Please respect copyright.ＰＥＮＡＮＡS5HL0n88Ra
> 🐟🐟53Please respect copyright.ＰＥＮＡＮＡ0vP3UjBVqD
> 🐱🐱🐱53Please respect copyright.ＰＥＮＡＮＡtWVbDe5IRI
魚有 2 條，貓有 3 隻。
所以：53Please respect copyright.ＰＥＮＡＮＡFET1gKNRVp
> 魚少於貓。53Please respect copyright.ＰＥＮＡＮＡBovzoaCIFB
留意：53Please respect copyright.ＰＥＮＡＮＡjkmRGSjSDO
> 「貓多於魚」和「魚少於貓」其實是同一回事，由兩個不同的方向理解。53Please respect copyright.ＰＥＮＡＮＡ2DoRXzPKeX
//
3. 相等 | Equal53Please respect copyright.ＰＥＮＡＮＡbaAMlUM4l1
如果兩組一樣多，我們會說：53Please respect copyright.ＰＥＮＡＮＡWMaXzbb6H7
> A 等於 B | A is equal to B53Please respect copyright.ＰＥＮＡＮＡM3uEqfAdLD
例如：53Please respect copyright.ＰＥＮＡＮＡPVQK60WcFy
> 🍎🍎🍎53Please respect copyright.ＰＥＮＡＮＡZ9QlnomBNJ
> 🧃🧃🧃53Please respect copyright.ＰＥＮＡＮＡJr2hptInzd
蘋果有 3 個，果汁有 3 盒。
所以：53Please respect copyright.ＰＥＮＡＮＡ9aJX8cGSfM
> 蘋果和果汁一樣多。53Please respect copyright.ＰＥＮＡＮＡCAxggjjYMw
在數學上，它叫做：53Please respect copyright.ＰＥＮＡＮＡ6eGgBohJz2
> 相等數量 | Equal quantity53Please respect copyright.ＰＥＮＡＮＡkXNoqKu9nh
三：比較不一定要先數出數字53Please respect copyright.ＰＥＮＡＮＡQ1Vzi6JYbD
上一課講過一個好重要的方法：53Please respect copyright.ＰＥＮＡＮＡUliQRrLtpy
> 一一對應 | One-to-one correspondence53Please respect copyright.ＰＥＮＡＮＡJOBhcD3Fif
即是每一個物件，配另一邊一個物件。
例如：53Please respect copyright.ＰＥＮＡＮＡwtNr1K16ey
> 🐱 ↔ 🐟53Please respect copyright.ＰＥＮＡＮＡ3GUvI8gQdd
> 🐱 ↔ 🐟53Please respect copyright.ＰＥＮＡＮＡVPT6iFXBsZ
> 🐱 ↔ 🐟53Please respect copyright.ＰＥＮＡＮＡQwFus3onQw
> 🐱 ↔ ？53Please respect copyright.ＰＥＮＡＮＡMY2gR4SbqI
魚已經配完，但還剩餘一隻貓。
所以：53Please respect copyright.ＰＥＮＡＮＡT4ropZtCl4
> 貓比較多。53Please respect copyright.ＰＥＮＡＮＡ8xh9Vn2cWO
> 魚比較少。53Please respect copyright.ＰＥＮＡＮＡ5xvw4pgkhs
這個方法有時比直接數更清楚。
因為比較數量的核心不是「背記數字」，而是：53Please respect copyright.ＰＥＮＡＮＡodbY34Hqac
> 「兩邊可不可以完整地配對？」53Please respect copyright.ＰＥＮＡＮＡDlmxrfFifG
四：簡單例子53Please respect copyright.ＰＥＮＡＮＡCOZ72c5eT6
例子 1：哪一邊多？53Please respect copyright.ＰＥＮＡＮＡbZkaJEezzm
A 組：53Please respect copyright.ＰＥＮＡＮＡqpajpmSAOt
> ⭐⭐⭐⭐53Please respect copyright.ＰＥＮＡＮＡOfacfJju9a
B 組：53Please respect copyright.ＰＥＮＡＮＡiKSdfYKRb8
> ⭐⭐53Please respect copyright.ＰＥＮＡＮＡcvB7HVJpY8
步驟：
A 組數到：53Please respect copyright.ＰＥＮＡＮＡWRwvwpfU0y
> 1、2、3、453Please respect copyright.ＰＥＮＡＮＡ2t5Bo6rDhZ
B 組數到：53Please respect copyright.ＰＥＮＡＮＡdGrIk65hsH
> 1、253Please respect copyright.ＰＥＮＡＮＡEvzMrieuu0
因為 4 比 2 多，所以：53Please respect copyright.ＰＥＮＡＮＡVPNXl8NT0m
> A 組多；B 組少。53Please respect copyright.ＰＥＮＡＮＡdeKDXmDjuE
//
例子 2：是否一樣多？
A 組：53Please respect copyright.ＰＥＮＡＮＡWxDTjPt30T
> ▲▲▲53Please respect copyright.ＰＥＮＡＮＡUlbjRW0EB1
B 組：53Please respect copyright.ＰＥＮＡＮＡCoTQXsHPyq
> ●●●53Please respect copyright.ＰＥＮＡＮＡFpIxmEnlmH
用配對：53Please respect copyright.ＰＥＮＡＮＡBDeEDWHKkc
> ▲ ↔ ●53Please respect copyright.ＰＥＮＡＮＡDhyE41Otev
> ▲ ↔ ●53Please respect copyright.ＰＥＮＡＮＡw6v0Sj0Xsi
> ▲ ↔ ●53Please respect copyright.ＰＥＮＡＮＡAHzqmGJzQY
沒有剩餘的三角形，也沒有剩餘的圓形。
所以：53Please respect copyright.ＰＥＮＡＮＡeLKczBdtHO
> A 組和 B 組一樣多。53Please respect copyright.ＰＥＮＡＮＡadiXSl4sYc
即是：53Please respect copyright.ＰＥＮＡＮＡCizhpA45jo
> 3 等於 3。53Please respect copyright.ＰＥＮＡＮＡt4YJ3aJ9Ac
五：引入符號：=、>、<53Please respect copyright.ＰＥＮＡＮＡdTn4WRZV5F
數學會利用符號簡短表示比較。53Please respect copyright.ＰＥＮＡＮＡljJzBnE81c
1. 等於符號：=53Please respect copyright.ＰＥＮＡＮＡXutZvbvLC0
> 3 = 3
讀作：53Please respect copyright.ＰＥＮＡＮＡkjz1pq52eW
> 「3 等於 3」53Please respect copyright.ＰＥＮＡＮＡJiojgFOzcC
意思是：53Please respect copyright.ＰＥＮＡＮＡYiIR6faiOu
> 左邊和右邊一樣大。53Please respect copyright.ＰＥＮＡＮＡywu0O4i4Zo
//
2. 大於符號：>53Please respect copyright.ＰＥＮＡＮＡDvNKCIajp2
> 4 > 2
讀作：53Please respect copyright.ＰＥＮＡＮＡj1dwpa7i1U
> 「4 大於 2」53Please respect copyright.ＰＥＮＡＮＡWRgzbqqbf3
意思是：53Please respect copyright.ＰＥＮＡＮＡqVUbS8D2IY
> 4 比 2 多。53Please respect copyright.ＰＥＮＡＮＡZifzbHnZdZ
//
3. 小於符號：<53Please respect copyright.ＰＥＮＡＮＡngsfjuWAZr
> 2 < 453Please respect copyright.ＰＥＮＡＮＡ5fGxAh2mWS
讀作：53Please respect copyright.ＰＥＮＡＮＡOp90d5RI9V
> 「2 小於 4」53Please respect copyright.ＰＥＮＡＮＡEVdD8OtFfd
意思是：53Please respect copyright.ＰＥＮＡＮＡuujX8FFRIp
> 2 比 4 少。53Please respect copyright.ＰＥＮＡＮＡt3bHTPLUdW
六：如何記住 > 和 <？53Please respect copyright.ＰＥＮＡＮＡGXQhDjIjuN
可以將符號想像成一張開口。53Please respect copyright.ＰＥＮＡＮＡAhLqC3gPEN
開口那邊，通常向往比較大的那個數。53Please respect copyright.ＰＥＮＡＮＡE3oAxJa23K
例如：53Please respect copyright.ＰＥＮＡＮＡ16ZSQDLziJ
> 5 > 253Please respect copyright.ＰＥＮＡＮＡOLTswNVnqT
開口向住 5，因為 5 比較大。
又例如：53Please respect copyright.ＰＥＮＡＮＡO1o6c1BVYN
> 2 < 553Please respect copyright.ＰＥＮＡＮＡmVWqMtpAJG
開口都是向住 5，因為 5 比較大。53Please respect copyright.ＰＥＮＡＮＡ2RWSbyYEdh
所以你可以這樣記：53Please respect copyright.ＰＥＮＡＮＡszwZxVJdn3
> 「開口吃大數。」53Please respect copyright.ＰＥＮＡＮＡbiQ886SvFA
但不好只靠口訣，最重要是要理解：53Please respect copyright.ＰＥＮＡＮＡj75KXkyRhU
> 「左邊是否比右邊多？」53Please respect copyright.ＰＥＮＡＮＡL1m3mbCLd3
> 「左邊是否比右邊少？」53Please respect copyright.ＰＥＮＡＮＡVM2iZG4apU
> 「兩邊是否一樣？」53Please respect copyright.ＰＥＮＡＮＡDjWxYB3HZ5
七：例子，填入正確符號53Please respect copyright.ＰＥＮＡＮＡrNDJqLVOW0
例子 3：53Please respect copyright.ＰＥＮＡＮＡMRFNm9bRwJ
> 3 _ 553Please respect copyright.ＰＥＮＡＮＡkuty4CmUud
思考：53Please respect copyright.ＰＥＮＡＮＡEf0Uol4DdF
3 是三件，5 是五件。53Please respect copyright.ＰＥＮＡＮＡyEUM7DlpDB
> 3 比 5 少。53Please respect copyright.ＰＥＮＡＮＡhi6rhqmYkk
所以：53Please respect copyright.ＰＥＮＡＮＡEAb0RE0N99
> 3 < 553Please respect copyright.ＰＥＮＡＮＡRVKGUVFXvB
//
例子 4：53Please respect copyright.ＰＥＮＡＮＡXQkICF1x9F
> 6 _ 253Please respect copyright.ＰＥＮＡＮＡWteOJkfLcB
思考：53Please respect copyright.ＰＥＮＡＮＡKuruqBS3VU
6 比 2 多。53Please respect copyright.ＰＥＮＡＮＡpYavZmQqOm
所以：53Please respect copyright.ＰＥＮＡＮＡw9PKTbObSS
> 6 > 253Please respect copyright.ＰＥＮＡＮＡ0KjsO6nW3t
//
例子 5：53Please respect copyright.ＰＥＮＡＮＡXQUpXyW4iE
> 4 _ 453Please respect copyright.ＰＥＮＡＮＡ1iNs4RXpFq
思考：53Please respect copyright.ＰＥＮＡＮＡ9A5V6TgYeT
兩邊都是 4。
所以：53Please respect copyright.ＰＥＮＡＮＡPxHIcn2wUr
> 4 = 453Please respect copyright.ＰＥＮＡＮＡiZyekLomjc
八：需要思考的例子，看似比較長，是不是一定較多？53Please respect copyright.ＰＥＮＡＮＡG85TaXFKy1
A 組：53Please respect copyright.ＰＥＮＡＮＡ70lSVBryKB
> ●●●●53Please respect copyright.ＰＥＮＡＮＡXk1QoB3PTd
B 組：53Please respect copyright.ＰＥＮＡＮＡvExsWYunxo
> ● ● ●53Please respect copyright.ＰＥＮＡＮＡv4fiAblISy
B 組排得很疏，好像佔用了更多空間。
問題：53Please respect copyright.ＰＥＮＡＮＡ5La37TkHce
> 「B 組是不是比 A 組多？」53Please respect copyright.ＰＥＮＡＮＡvgXt5V1eLV
步驟 1：不好只靠視覺長度53Please respect copyright.ＰＥＮＡＮＡ3YRdgDutwg
B 組雖然排得長，但「長」不等於「多」。53Please respect copyright.ＰＥＮＡＮＡywvZUdRLyi
步驟 2：數 A 組53Please respect copyright.ＰＥＮＡＮＡFB05bvWrtc
> 1、2、3、453Please respect copyright.ＰＥＮＡＮＡclbEWcco48
A 組有 4 個。53Please respect copyright.ＰＥＮＡＮＡyLaXsuDJoK
步驟 3：數 B 組53Please respect copyright.ＰＥＮＡＮＡafPQJMl8t3
> 1、2、353Please respect copyright.ＰＥＮＡＮＡgU38zjllh1
B 組有 2 個。53Please respect copyright.ＰＥＮＡＮＡzyWgvigyAT
結論：53Please respect copyright.ＰＥＮＡＮＡfqR4UeZQ8m
> A 組多於 B 組。53Please respect copyright.ＰＥＮＡＮＡiOXpedygbt
用符號寫：53Please respect copyright.ＰＥＮＡＮＡVNXAnmTvr6
> 4 > 353Please respect copyright.ＰＥＮＡＮＡp9Tpy7cjr3
這個例子提醒你：53Please respect copyright.ＰＥＮＡＮＡzCLWWGU4AA
> 「數量和排列方式不是同一回事。」53Please respect copyright.ＰＥＮＡＮＡnoutp2Zfgq
九：更深入，多了多少？53Please respect copyright.ＰＥＮＡＮＡipRhlcULMa
比較不只可以講「哪一邊多」，也可以問：53Please respect copyright.ＰＥＮＡＮＡ3abmn3YS8P
> 「多了多少？」53Please respect copyright.ＰＥＮＡＮＡxCG2blzhu5
例如：53Please respect copyright.ＰＥＮＡＮＡQqNmcVaI7J
A 組：53Please respect copyright.ＰＥＮＡＮＡzZCytSFM8J
> 🍎🍎🍎🍎🍎53Please respect copyright.ＰＥＮＡＮＡ48ohO5LvTq
B 組：53Please respect copyright.ＰＥＮＡＮＡUnkBSVderB
> 🧃🧃🧃53Please respect copyright.ＰＥＮＡＮＡobzUkadoiv
用配對：53Please respect copyright.ＰＥＮＡＮＡaACeLHgM21
> 🍎 ↔ 🧃53Please respect copyright.ＰＥＮＡＮＡhQCg6C2hHu
> 🍎 ↔ 🧃53Please respect copyright.ＰＥＮＡＮＡpSLWuYRppD
> 🍎 ↔ 🧃53Please respect copyright.ＰＥＮＡＮＡu0MlnaVGBH
> 🍎 ↔ ?53Please respect copyright.ＰＥＮＡＮＡ9jl6G0EdTB
> 🍎 ↔ >53Please respect copyright.ＰＥＮＡＮＡ5QbvAKPb7B
果汁配完之後，還有 2 個蘋果未配對。
所以：53Please respect copyright.ＰＥＮＡＮＡKqlRSyhddV
> 蘋果比果汁多 2 個。53Please respect copyright.ＰＥＮＡＮＡlDWV7zDDpU
而果汁就可以說：53Please respect copyright.ＰＥＮＡＮＡbBAudy4fq7
> 果汁比蘋果少 2 個。53Please respect copyright.ＰＥＮＡＮＡiswt0yJcHG
留意：我們現在未正式學習「減法」 ，但你已經可以用「配對後剩餘多少」理解差距。
這個差距將來會變成：53Please respect copyright.ＰＥＮＡＮＡcdX6v0kJEP
> 差 | Difference53Please respect copyright.ＰＥＮＡＮＡBVuN2gra85
十：思考例子：三組之間如何比較？53Please respect copyright.ＰＥＮＡＮＡzL8hOBpl90
有三組物件：
A 組：53Please respect copyright.ＰＥＮＡＮＡrqzaohwSGR
> ⭐⭐⭐⭐⭐53Please respect copyright.ＰＥＮＡＮＡzoEZzGT7nh
B 組：53Please respect copyright.ＰＥＮＡＮＡkUxXts5XcO
> ▲▲▲
C 組：53Please respect copyright.ＰＥＮＡＮＡ1DtEBCmXRm
> ●●●●53Please respect copyright.ＰＥＮＡＮＡTTjS9nWJzX
問題：53Please respect copyright.ＰＥＮＡＮＡPlXdGdHOU8
> 「哪組最多？」「哪組最少？」「C 組在中間嗎？」
步驟 1：數每組數量53Please respect copyright.ＰＥＮＡＮＡuF6E46E0TA
A 組：53Please respect copyright.ＰＥＮＡＮＡpsk2oSfG1i
> 5 個53Please respect copyright.ＰＥＮＡＮＡhtLd4GXYYn
B 組：53Please respect copyright.ＰＥＮＡＮＡ1ZjmWCYRvr
> 3 個53Please respect copyright.ＰＥＮＡＮＡH9A3UZ7hzR
C 組：53Please respect copyright.ＰＥＮＡＮＡwML7tdjYhW
> 4 個53Please respect copyright.ＰＥＮＡＮＡMkz2gB4eS4
步驟 2：比較大小53Please respect copyright.ＰＥＮＡＮＡW0g3ElvtgD
我們知道：53Please respect copyright.ＰＥＮＡＮＡKu3Cpp5hyI
> 5 > 453Please respect copyright.ＰＥＮＡＮＡfiPrM7RzjA
> 4 > 353Please respect copyright.ＰＥＮＡＮＡIfbx1CPXY2
所以排列為：53Please respect copyright.ＰＥＮＡＮＡ7aw1beITUN
> 5 > 4 > 353Please respect copyright.ＰＥＮＡＮＡuSHDHyckDO
對應物件：53Please respect copyright.ＰＥＮＡＮＡYrqgFV6bmT
> A 組 > C 組 > B 組53Please respect copyright.ＰＥＮＡＮＡzTIKTXeazd
結論：53Please respect copyright.ＰＥＮＡＮＡD1vIBTe4Kp
最多：53Please respect copyright.ＰＥＮＡＮＡ82w39boI4s
> A 組53Please respect copyright.ＰＥＮＡＮＡKGoa8qCCIa
最少：53Please respect copyright.ＰＥＮＡＮＡSF8jZ25vl7
> B 組53Please respect copyright.ＰＥＮＡＮＡbdchc4U5ZT
C 組：53Please respect copyright.ＰＥＮＡＮＡ2dcKy0aTKz
> 在 A 組和 B 組中間。53Please respect copyright.ＰＥＮＡＮＡ0I3DA9DFgi
在這裏，你已經開始用一種新思想：53Please respect copyright.ＰＥＮＡＮＡwoEbUNJWsg
> 排序 | Ordering53Please respect copyright.ＰＥＮＡＮＡDvppO32AqM
即是將數量由小至大，或者由大至小排好。
十一：最深一點：如果 A 多於 B、B 多於 C，哪 A 和 C 呢？53Please respect copyright.ＰＥＮＡＮＡAA4g85u3cE
假設：53Please respect copyright.ＰＥＮＡＮＡYPuoCcC75q
> A 多於 B53Please respect copyright.ＰＥＮＡＮＡIGzjhKwCOT
> B 多於 C
哪 A 和 C 比較，哪個多？
我們用具體數字看：
> A = 653Please respect copyright.ＰＥＮＡＮＡi8lZmOq6NW
> B = 453Please respect copyright.ＰＥＮＡＮＡbvT5rna9oc
> C = 2
因為：53Please respect copyright.ＰＥＮＡＮＡrv2chmbJZL
> 6 > 453Please respect copyright.ＰＥＮＡＮＡdLzNPzuora
> 4 > 253Please respect copyright.ＰＥＮＡＮＡ8ebHOedp7e
所以：53Please respect copyright.ＰＥＮＡＮＡd4JrUtbAzd
> 6 > 253Please respect copyright.ＰＥＮＡＮＡ1lvbQdlQDp
即是：53Please respect copyright.ＰＥＮＡＮＡRtaSdSsDwq
> A 多於 C。53Please respect copyright.ＰＥＮＡＮＡaBn38bRl3p
這個思想叫做：53Please respect copyright.ＰＥＮＡＮＡxDugZXWudn
> 傳遞性 | Transitivity53Please respect copyright.ＰＥＮＡＮＡCpclHF81K3
你現在不用記住這個名字，但要明白意思：53Please respect copyright.ＰＥＮＡＮＡQdpOCGIEH1
> 「如果第一個比第二個大，第二個又比第三個大，那麼，第一個一定比第三個大。」53Please respect copyright.ＰＥＮＡＮＡ6yCWVaoOGw
用簡單形式寫：53Please respect copyright.ＰＥＮＡＮＡ1syLM1fMzP
> 如果 A > B，而且 B > C，53Please respect copyright.ＰＥＮＡＮＡRtULHWOSEI
> 那 A > C。53Please respect copyright.ＰＥＮＡＮＡCkf7Bqr5cS
這個將來會在代數、幾何、證明裏面不停出現。
十二：容易混淆的地方53Please respect copyright.ＰＥＮＡＮＡqwuqYRkI73
混淆 1：物件大小不等於數量多少53Please respect copyright.ＰＥＮＡＮＡZ7S60S9THU
例如：
A 組：53Please respect copyright.ＰＥＮＡＮＡdjLC1GIGB0
> 🐘🐘53Please respect copyright.ＰＥＮＡＮＡLVRgwB2llX
B 組：53Please respect copyright.ＰＥＮＡＮＡWN2Z9srgcH
> 🐜🐜🐜🐜🐜53Please respect copyright.ＰＥＮＡＮＡpxY1K6tVYc
大象很大，螞蟻很小。
但數量上：53Please respect copyright.ＰＥＮＡＮＡwcjbmGVG49
> 大象有 2 隻53Please respect copyright.ＰＥＮＡＮＡyl65L0LQwW
> 螞蟻有 5 隻53Please respect copyright.ＰＥＮＡＮＡ46GwEp3Lsj
所以：53Please respect copyright.ＰＥＮＡＮＡBn6XAa7A5V
> 螞蟻比較多。53Please respect copyright.ＰＥＮＡＮＡ5uICwaqJXf
數量比較問的是：53Please respect copyright.ＰＥＮＡＮＡGW9q7dMW5B
> 「有多少個。」53Please respect copyright.ＰＥＮＡＮＡbn2tFV3mn8
不是：53Please respect copyright.ＰＥＮＡＮＡT70ECfL0VK
> 「每個有多大。」53Please respect copyright.ＰＥＮＡＮＡ2Egh0x5GRY
//
混淆 2：排得長不等於多53Please respect copyright.ＰＥＮＡＮＡllCIjG2LT8
例如：53Please respect copyright.ＰＥＮＡＮＡInxWZhvx2o
> ● ● ●53Please respect copyright.ＰＥＮＡＮＡsOMHWA0a1P
> ●●●●53Please respect copyright.ＰＥＮＡＮＡEpT4Ifpdre
上面排得長，但只有 3 個。53Please respect copyright.ＰＥＮＡＮＡafZMl8vBXC
下面排得短，但有 4 個。53Please respect copyright.ＰＥＮＡＮＡJwdo7ojvny
所以：53Please respect copyright.ＰＥＮＡＮＡsbYSuPrYtj
> 下面比較多。53Please respect copyright.ＰＥＮＡＮＡSddR25qAtL
//
混淆 3：相等不代表完全一樣53Please respect copyright.ＰＥＮＡＮＡVE09MpQyfG
例如：53Please respect copyright.ＰＥＮＡＮＡBdbh6eyVmw
> 🍎🍎🍎53Please respect copyright.ＰＥＮＡＮＡqaem5fNJ5A
> 🐟🐟🐟53Please respect copyright.ＰＥＮＡＮＡmW51jgP9X4
蘋果和魚完全不同。
但數量一樣：53Please respect copyright.ＰＥＮＡＮＡ392aSI2KTI
> 3 = 353Please respect copyright.ＰＥＮＡＮＡE7fuemd4hk
所以可以說：53Please respect copyright.ＰＥＮＡＮＡQQo8NU3VhV
> 他們數量相等。53Please respect copyright.ＰＥＮＡＮＡo2KeBaio5A
相等可以只是指某一方面相等。53Please respect copyright.ＰＥＮＡＮＡzGnfnPK6SA
今課中指的相等，是：53Please respect copyright.ＰＥＮＡＮＡuhg5FxerY9
> 數量相等。53Please respect copyright.ＰＥＮＡＮＡB3HpVHF3oF
十三：今日小結53Please respect copyright.ＰＥＮＡＮＡ0r8P9EBh37
今課你掌握了：53Please respect copyright.ＰＥＮＡＮＡeJo7pJEGfA
1. 比較數量有三種結果：多於、少於、相等。53Please respect copyright.ＰＥＮＡＮＡUfE3bE9XbT
2. 可以用數數比較，也可以用一一對應比較。53Please respect copyright.ＰＥＮＡＮＡAkCWLqeAoa
3. 「=」比示等於，「>」表示大於，「<」表示少於。53Please respect copyright.ＰＥＮＡＮＡQtaSqPKfnp
4. 排列疏密、物件大小、物件種類，都不一定影響數量。53Please respect copyright.ＰＥＮＡＮＡrDoPzhZh12
5. 如果 A > B，而且 B > C，那 A > C。這個是比較的傳遞性。53Please respect copyright.ＰＥＮＡＮＡJSSJBIb8Cx
and then Add to home screen.