ArtsMedford (formerly Medford Arts Center, Inc.) invites you to the eighth edition of "Tuesdays with MARV," featuring local artists and their work using MACI's beloved Medford Arts Resource Vehicle. This week, Joan Green of Cambridge will screen share her work in a variety of media, comment, answer questions, and talk with viewers. Joan has been an artist since she could hold a crayon, but made her first artistic career as a dancer, teacher and choreographer. Now she paints in oils…