【蘇教版】五年級上：84釘子板上的多邊形ppt課件-免費閱讀
【正文】 2+(x1) 概括規(guī)律 要善于從不同的多變形中找到它們的相同點。 2 數(shù)學是研究千變?nèi)f化中不變的規(guī)律 —— 開普勒 激活猜想 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 1㎝ 1㎝ 、 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● n=10 s=6 n=9 s= n=9 s= n=8 s=7 進行驗證 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。 2 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
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