The Bay Area offers the grandest smorgasbord of dance outside of New York City, and National Dance Week is your opportunity to sample what’s on offer — for free. The 33rd annual festival includes an array of events and dance styles. Among the highlights: classes on Tahitian dancing at the Mahea Uchiyama Center (729 Heinz Ave., Berkeley) and Congolese dancing with Cultural Arts of GOLD at Malonga Casquelourd Arts Center (1428 Alice St., Oakland) on Sunday, and Afro-Cuban folkloric dancing with Dimensions Dance Theater (also at Malonga Casquelourd Arts Center) on Wednesday. If you’d rather watch, pack a lunch and take in Thursday’s 20 Points of View — an all-day presentation of works in progress by Randee Paufve, The Thick Rich Ones, Jessi Barber, Andrea Mock, Colin Epstein, and sixteen other inventive choreographers — at Luna Dance Institute (605 Addison St., Berkeley). Visit the website for more information.