The numeral system applied to the measurement of certain magnitudes in which each unit is divided into sixty units of lower order is the sexagesimal system. This system is used for measuring times and angles.
You can practice with the following activity. You will need the program JClic, and once you got it, you can download this activity:
Once you have your download (you have to click on the button "Download Original"), you open the programm JClic, and you click on "Archivo", "Open" and you look for the file.