BABYSITTER COURSE,registration required by today for 9 a.m.-1 p.m. class on Saturday for ages 11 to 15; instruction in safety precautions, basic first aid, calling for emergency help and marketing of services; take a bag lunch or snack. Laurel Regional Hospital, 7300 Van Dusen Rd., Laurel. $28. 301-497-7914.
SCULPTURE BY MARCELLA MORGESE, mixed-media works by the Maryland artist, through March 26. Montpelier Arts Center, 9652 Muirkirk Rd., Laurel. Free. 301-7800, 301-490-2329 (TTY), http://www.pgparks.comor montpelier.arts@pgparks.com.
THEATER: “THE LITTLE ENGINE THAT COULD,” for ages 3-9, Omaha Theatre Company performs an interactive version of the classic tale. 10:15 a.m. and noon, Publick Playhouse, 5445 Landover Rd., Cheverly. $5. 301-277-1710.
CHILDREN’S AVIATION CLUB, for ages 2-5 accompanied by an adult, the Peter Pan Club activities include flying stories, museum tours, crafts and games. 10:30 a.m.-noon, College Park Aviation Museum, 1985 Cpl. Frank Scott Dr. Free, with museum admission: $4; seniors, $3; ages 2-18, $2. 301-864-6029 or http://www.collegeparkaviationmuseum.com.
