I was supposed to give special supervising class for IS faculty at Wednesday at 9 AM, but i thought today was Wednesday. No wonder the students didn't come up until 9:30 AM. As my class started at 1.30 PM, i could have idle for about 4 hours, but luckily, i had to discuss something with my colleague, so time was not wasted.
It seems that i'm really overloaded by the schedule of this week. I think i need a time out and reschedule my plan for this week and next week.