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【蘇教版】五年級上：84釘子板上的多邊形ppt課件(完整版)

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【正文】 ● ● ● ● ● ● ● ● ● 激活猜想 ● 圖形編號 多邊形的面積/平方厘米 多邊形邊上的釘子數(shù) /枚 ① 2 4 ② 3 6 ③ 7 ④ 4 8 (s) (n) S=n247。 充實猜想 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 1㎝ 1㎝ ① ② ③ ④ 圖形編號 多邊形的面積 /平方厘米 多邊形邊上的釘子數(shù) /枚 ① ② ③ ④ (s) (n) 6 10 9 3 4 5 8 充實猜想 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
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