The Mall of America has been infected by March Madness. In honor of the NCAA Final Four coming to Minneapolis next week, the nation’s largest mall will host a weekend of family activities. Take a picture with mascots Goldy Gopher and Crunch. Travel through interactive basketball stations and watch tricks from the Alexandria Aces basketball performance team. Also the musical stylings of the Mankato Pep Band, Riceville Drum Line and Ragtown Band. 4-8 p.m. today; 1-4 p.m. Sat.; noon-3 p.m. Sun., Rotunda, Mall of America, Bloomington. mallofamerica.com.