2M2.4 量度活動開始、結束或所用的時間 (時、分) Find the elapsed time using 'Hours and Minutes'

中文版:http://www.geogebratube.org/material/show/id/6078 (Download GeoGebra file)

從活動的開始、結束及所用的時間中任何兩個已知量,透過撥動時鐘
的分針及時針,找出剩下的未知量。

輸入活動的開始及結束時間。撥動分針及時針,量度活動用了多少時間;或
輸入活動開始/結束時間,撥動分針和時針至已知的活動所用的時間,找出活動的結束/開始時間


English version:  http://www.geogebratube.org/material/show/id/9312 (Download GeoGebra file)

This applet helps students to find the elapsed time from the given 
starting time and ending time, or to find the starting/ending time 
given the ending/starting time and the time elapsed.

Find the elapsed time from the given starting time and ending time.
Also, we can find the starting/ending time given the ending/starting time and the time elapsed.