YOU'RE A GOOD MAN, CHARLIE BROWN A cast of 3d to 5th graders from Watertown Children's Theatre will solve the problems of the world through Charles M. Schulz's lovable characters. The musical covers it all — baseball games, book reports, and childhood crushes. Nov. 20 and 21 at 7 p.m., Nov. 22 at 2 p.m. $12. Charles Mosesian Theater, Arsenal Center for the Arts, 321 Arsenal St., Watertown. 800-838-3006. www.watertownchildrenstheatre.org
FREE FAMILY NIGHT The SMART Gals series (Science-Math-Art) soars with activities and performances about aviator Amelia Earhart at the Children’s Discovery and Science Discovery museums. Photos, articles, and news clippings will also be on display. Nov. 20, 5:30-8 p.m. Free (tickets for 6 and 7 p.m. performances are on a first-come, first-served basis and recommended for ages 8 and older). The Discovery Museums, 177 Main St., Route 27, Acton. 978-264-4200. www.discoverymuseums.org
VANESSA TRIEN AND FRIENDS The Cambridge Center for Adult Education is all about kids on Saturday at this family concert followed by cupcake decorating. The award-winning songwriter, performer, and music educator performs with Sharon Simon and Julie Winslow. Nov. 21 at 10:30 a.m. $8 (concert), $12 (includes cupcake decorating). Recommended for ages 7 and under. Brattle Theatre, 40 Brattle St., Harvard Sq., Cambridge. 617-547-6789, ext. 1. www.ccae.org
THE HALL AT PATRIOT PLACE New England Patriots artifacts, interactive multimedia exhibits, and New England football history are now joined by guided tours (Tuesdays and Wednesdays) and activities for preschoolers (Wednesday). Tues and Wed tours at 2 p.m.; Wed “Kids Day’’ at 11 a.m. $10, $7 seniors and military, $5 ages 5-12. Space is limited. The Hall at Patriot Place, 1 Patriot Pl., Foxborough. 508-698-4800. www.thehallatpatriotplace.com
FESTIVAL OF TREES More than 200 Christmas trees decorated by residents, businesses, community groups, and volunteers are set to illuminate the city of Methuen. Friday’s “Taste of the Festival’’ offers food from local restaurants, music, and the tree unveiling. Nov. 20 “Taste of the Festival’’ is 6-10 p.m. $50. Trees will be on display through Dec. 5 weekdays 5-9 p.m., weekends 10 a.m.-9 p.m. $8, free under 12. Valley Office Park, 13 Branch St., Methuen. 978-685-8878. www.methuenfestivaloftrees.com 
