Sentence:  The upshot of the evening was that I got the address of Pendleton 's studio - or rather , of the studio in which he gave his <WSD>classes</WSD> , for he did n't work there himself - and joined the life class , which met every Tuesday and Thursday from ten to twelve in the morning . 
Meaning of the word marked with <WSD> tags:  education imparted in a series of lessons or meetings