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教學案例
日期 : 27 / 3 / 2013 (三) 時 間 : 1:30 – 2:30
班別 : 1B 學生人數 : 17
教師 : 司徒智瀅 課 題 : 19 平面圖形 (二)
教節 : 1,2 / 2 (共 2 教節)
教學目的 :
1. 學生能說出七巧板的各個組成部分
2. 學生能說出七巧板的起源
3. 學生能利用七巧板拼砌平面圖形
4. 學生能利用七巧板拼砌圖畫
已有知識 :
1. 學生已認識各個平面圖形。
資源及器材 :
1. 電腦、七巧板學具
黑/白板運用
1
1S3 平面圖形
目的 指示 / 提問 / 講述 時間
1.
2.
老師展示軟件
觀察七巧板的組成部份
提問
七巧板有平面圖形多少塊? (數)
哪幾塊是三角形? (指)
哪幾塊是四邊形? (指)
哪一塊是正方形? (指)
提問
哪兩個三角形的大小一樣? A 和 B 及 C 和 D
A 和 B 是大一點, C 和 D 是小一點
小總結
七巧板共有 7 塊平面圖形,當中包括三角形和四邊形
講述
七巧板由中國人發明
提問
圖 1 像什麼?
屋頂由哪些圖形組成?
圖 2 像什麼?
洋燭的火是由什麼平面圖形組成?
洋燭有多少個三角形? 哪些是三角形?(指)
圖 3 像什麼?
小馬的頭部由哪些圖形組成?
小馬的身體由哪些圖形組成?
10’
3.
講述
七巧板可拼不同的平面圖形
老師展示軟件
讓學生指出哪一塊是 C, 哪一塊是 D
老師拿出教具 C 及 D
提問學生這是什麼圖形?
分別砌出正方形和三角形
小總結
可利用七巧板拼出其他平面圖形
5’
3.
老師展示軟件
拿出七巧板 C,D 及 E
拼一長方形
C,D 是最小的兩個三角形及 E 是中間大小的三角形
10’
2
1S3 平面圖形
派發每人一套七巧板
引導同學找出正確的三塊,其餘先放入膠袋
同學利用 3 分鐘用七巧板試拼正方形
完成後把七巧板貼紙貼在書上
成功拼到的同學到黑板拼
3.
講述
用 A 和 B 兩塊七巧板來拼圖
A 和 B 兩塊七巧板即是最大的兩塊
完成後把 A 及 B 放回膠袋
利用 5 分鐘用餘下的七巧板完成題目 2
成功砌到的同學到黑板拼
20’
3.
鞏固活動
練習 19
利用七巧板拼第 1 題後,把貼紙貼到書上
成功拼到的同學到黑板拼
利用七巧板拼第 2 題後,把貼紙貼到書上
成功拼到的同學到黑板拼
15’
作 P.19,20,21 , 改 P.15,16
補 P.16,17 , 改 P. 40,41
3
1S3 平面圖形

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Ch 19 1,2@2 教學案例

  • 1. 教學案例 日期 : 27 / 3 / 2013 (三) 時 間 : 1:30 – 2:30 班別 : 1B 學生人數 : 17 教師 : 司徒智瀅 課 題 : 19 平面圖形 (二) 教節 : 1,2 / 2 (共 2 教節) 教學目的 : 1. 學生能說出七巧板的各個組成部分 2. 學生能說出七巧板的起源 3. 學生能利用七巧板拼砌平面圖形 4. 學生能利用七巧板拼砌圖畫 已有知識 : 1. 學生已認識各個平面圖形。 資源及器材 : 1. 電腦、七巧板學具 黑/白板運用 1 1S3 平面圖形
  • 2. 目的 指示 / 提問 / 講述 時間 1. 2. 老師展示軟件 觀察七巧板的組成部份 提問 七巧板有平面圖形多少塊? (數) 哪幾塊是三角形? (指) 哪幾塊是四邊形? (指) 哪一塊是正方形? (指) 提問 哪兩個三角形的大小一樣? A 和 B 及 C 和 D A 和 B 是大一點, C 和 D 是小一點 小總結 七巧板共有 7 塊平面圖形,當中包括三角形和四邊形 講述 七巧板由中國人發明 提問 圖 1 像什麼? 屋頂由哪些圖形組成? 圖 2 像什麼? 洋燭的火是由什麼平面圖形組成? 洋燭有多少個三角形? 哪些是三角形?(指) 圖 3 像什麼? 小馬的頭部由哪些圖形組成? 小馬的身體由哪些圖形組成? 10’ 3. 講述 七巧板可拼不同的平面圖形 老師展示軟件 讓學生指出哪一塊是 C, 哪一塊是 D 老師拿出教具 C 及 D 提問學生這是什麼圖形? 分別砌出正方形和三角形 小總結 可利用七巧板拼出其他平面圖形 5’ 3. 老師展示軟件 拿出七巧板 C,D 及 E 拼一長方形 C,D 是最小的兩個三角形及 E 是中間大小的三角形 10’ 2 1S3 平面圖形
  • 3. 派發每人一套七巧板 引導同學找出正確的三塊,其餘先放入膠袋 同學利用 3 分鐘用七巧板試拼正方形 完成後把七巧板貼紙貼在書上 成功拼到的同學到黑板拼 3. 講述 用 A 和 B 兩塊七巧板來拼圖 A 和 B 兩塊七巧板即是最大的兩塊 完成後把 A 及 B 放回膠袋 利用 5 分鐘用餘下的七巧板完成題目 2 成功砌到的同學到黑板拼 20’ 3. 鞏固活動 練習 19 利用七巧板拼第 1 題後,把貼紙貼到書上 成功拼到的同學到黑板拼 利用七巧板拼第 2 題後,把貼紙貼到書上 成功拼到的同學到黑板拼 15’ 作 P.19,20,21 , 改 P.15,16 補 P.16,17 , 改 P. 40,41 3 1S3 平面圖形