OKAY	=	100 points	presentation was made
SKIP	=	80 points	student declined presentation
NULL	=	60 points	student was absent

Month	Mon	Wed	Fri
January
	03	05	07
	10	12	14
	17	19	21
	24	26	28
	31
February
		02	04
	07 SKIP	09 OKAY	11 SKIP
	14	16	18 SKIP
	21	23	25 SKIP
	28
March
		01	03
	06	08	10
	13	15	17
	20 NULL	22	24
	27 OKAY	29	31 SKIP
April
	03	05	07 SKIP
	10	12	14
	17	19	21
	24	26	28