比例尺【學生用 】六年級 ~ 清大附小 馮汝琪老師(有cc字幕和影片重點整理)
Synopsis
比例尺是放大圖與縮圖的觀念延伸，在實際生活中，懂得看比例尺就不會對圖面的空間或長度產生錯誤的判斷，是十分實用的數學 ...
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