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ç¾ä»£æ•¸å¸ 4 下 B 課本 - PowerPoint PPT Presentation
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ç¾ä»£æ•¸å¸ 4 下 B 課本. 圖形密鋪. å°å…‰ å’Œ å¥æ–‡ 一åŒåƒåŠ æ‹¼åœ–æ¯”è³½ã€‚ä»–å€‘é ˆä¾é¡Œ 目指示，找出圖形æ¿ä¾†æ‹¼ç Œåœ–形。. 題目一： 請利用ç‰è…°ç›´è§’三角形拼出æ£æ–¹å½¢ 或長方形。. ç‰è…°ç›´è§’三角形. å¥æ–‡ 拼出長方形：. å°å…‰ 拼出æ£æ–¹å½¢ï¼š. 題目二： 請利用ç‰é‚Šä¸‰è§’形拼出四邊形。. ç‰é‚Šä¸‰è§’å½¢. å°å…‰ 拼出è±å½¢ï¼š. å¥æ–‡ 拼出梯形：. 題目三： 請利用相åŒçš„四邊形拼出圖形。. å°å…‰ 利用梯形拼出平行四邊形：. å¥æ–‡ 利用è±å½¢æ‹¼å‡ºå…邊形：. 題目四： 甚麼是密鋪？. ç„¡é‡ç–Šã€ç„¡ç©ºéš™çš„æ‹¼ç Œï¼Œ 便是 密鋪 。. å¯ä»¥ã€‚.
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圖形密鋪
目指示，找出圖形板來拼砌圖形。
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