Some ideas:
- say a time and students have to put the clock hands in the right position
or
- you can try a TPR activity. Each student puts the time he wants and them you name a time and the students who have it, stand up.
- another thing you can do is ask students to make their schedule drawing clocks and writing the time, for example the time they arrive school, time they have lunch, time they have english classes, time they go home.... and so on
