After looking at student data, it was determined for a particular student that 4 chill passes would be sufficient for the morning and 4 more for the afternoon. If she did not use her morning chill passes, then she could add them to the afternoon allotment, especially since afternoons were her most difficult time. Her 4 chill passes included one for 2 minutes, one for 3 minutes, one for 5 minutes and another for 10 minutes.
She learned the concept of how to use the chill passes quickly and would evaluate the situation carefully before deciding which amount of time she would need in the chill zone. For this student, the teacher also added the feature of combining her chill passes so that she could choose a maximum amount of time of 20 minutes in the chill zone at one time if the situation called for such measures.