I can't believe how stupid I was! I got my lesson plan for Friday a week ago and looked at it numerous times but didn't notice until 11pm tonight that they scheduled me for a 6th period class when I'm supposed to leave right after lunch tomorrow!!! (All of the Towada BOE ALTs are heading off to Aomori for the JET Leavers' Party.)
I can't believe I screwed up so badly! I was even looking at the lesson plan at school today and still didn't clue in! What an idiot... Now I've got to gear myself up for apologizing profusely tomorrow...