The verbs sapere and conoscere both mean "to know," but have different implications. Sapere means "to know," "to be able to," or "to know how to." Take a look at these examples with the io form of sapere:

　　So la lezione.(I know the lesson.)

　　So cantare.(I know how to sing; I am able to sing.)

　　Conosceremeans to know, to be acquainted with, or to make the acquaintance of: