SARAH CHANG AND LARS VOGT -- 8 p.m. Thursday. Violinist Chang and pianist Vogt perform. Dekelboum Concert Hall, Clarice Smith Performing Arts Center, Stadium Drive and Route 197. $20-$40. 301-405-2787.

AIR FORCE CHAMBER BAND -- 8 p.m. Thursday. Musical performance by the U.S. Air Force Chamber Players, featuring oboe and clarinet, performed by Master Sgts. Jill Westyn and Julianna Evans. Harmony Hall Regional Center, 10701 Livingston Rd., Fort Washington. 301-203-6070.

ETHEL ENNIS -- 8 p.m. Friday. The Baltimore jazz pianist and singer performs with her trio in the third concert of the Spring Jazz Series at Montpelier Cultural Arts Center, 12826 Laurel-Bowie Rd., Laurel. $15. 301-953-1993.

FIRE-DEAN -- 7:30 p.m. Friday. Songwriter-guitarist performs. Borders Books & Music, 420 Mitchellville Rd., Bowie. Free. 301-352-5560.

For Children

NATURE DISCOVERY: REPTILES AND AMPHIBIANS -- 1-2 p.m. Thursday. Children 3-5 can meet Corny the snake and Bumpy the toad. Mount Rainier Nature/Recreation Center, 4701 31st Pl., Mount Rainier. $2; resident, $1. 301-927-2163.

FAMILY CAMPFIRE -- 6:30-8 p.m. Friday. Naturalist-led campfire for ages 3 and up. Bring hot dogs to roast. Clearwater Nature Center, 11000 Thrift Rd., Clinton. $2; resident, $1. 301-297-4575.

ST. PATRICK'S DAY SOCK HOP -- 1-3 p.m. Saturday. Children 6-12 wear green, listen to music and play games. Refreshments will be served. Seat Pleasant Activity Center, 5720 Addison Rd., Seat Pleasant. $4; resident, $3. Reservations, 301-773-6685.

MAD HATTER'S TEA -- 1 p.m. and 4 p.m. Saturday. Junior docents serve refreshments and portray characters from "Alice in Wonderland." Ages 4 and up. Marietta House Museum, 5626 Bell Station Rd., Glenn Dale. Adults, $12; children, $8. 301-464-5291.

SALUTE TO AMERICAN MUSIC -- 10:30 a.m. Wednesday. Ed McDade, a songwriter and musician, performs on guitar, harmonica and banjo as part of a children's series. Harmony Hall Regional Center/John Addison Concert Hall, 10701 Livingston Rd., Fort Washington. $4. 301-203-6070.

KITE-MAKING WORKSHOP -- 4 p.m. Wednesday. Kids 6-12 make a kite for the Smithsonian Kite Festival trip scheduled for Saturday, March 22. Marlow Heights Community Center, 2800 Saint Clair Dr., Marlow Heights. $3. Reservations, 301-888-1500.

Sports and Recreation

WEIGHT ROOM WORKOUT -- 6:30 a.m.-10 p.m. Monday-Friday, 9 a.m.-7 p.m. Saturdays and Sundays. Exercise to music, for adults. Kettering/Largo Community Center, 431 Watkins Park Dr., Upper Marlboro. $30 per week; bi-county residents, $15 per week. 301-390-8390.

DJ ICE SKATING NIGHT -- 7-10 p.m. Friday. Skate to music. Herbert Wells Ice Rink, 5211 Paint Branch Pkwy., College Park. Includes admission and skate rental. $8. 301-277-3717.

SPRING INTER-RINK ICE SKATING COMPETITION -- 7 a.m.-6:30 p.m. Saturday. Local ice skaters compete against one another. Herbert Wells Ice Rink, 5211 Paint Branch Pkwy., College Park. Free. 301-277-3717.

BIRDING THE PATUXENT -- 8-11 a.m. Saturday. Boat trip and Patuxent River tour for serious birders who are 18 and older. Patuxent River Park, 16000 Croom Airport Rd., Upper Marlboro. $6; non-resident, $5. 301-627-6074.

CHESAPEAKE BAY CRITICAL AREA DRIVING TOUR -- 10 a.m.-3 p.m. Sunday. A self-guided, four-mile driving tour with interpretive stops, an observation tower and a timber bridge over scenic wetlands. Patuxent River Park, 16000 Croom Airport Rd., Upper Marlboro. Free. 301-627-6074.

BASKETBALL FUNDRAISER -- 1 p.m. Sunday. B.Y.O. Track & Basketball Club and P.E. Williams Elementary School PTA. sponsor a game between the Harlem Wizards and the P.G. Law Enforcement All-stars to raise money for P.E. Williams in Upper Marlboro. Steppers and cheerleaders will also perform. Novak Field House, Prince George's Community College, 301 Largo Rd., Largo. Adults, $10; children under 12, $5. 401-499-3773.

AQUA KICKBOXING -- 7-7:45 p.m. Tuesdays. Underwater kickboxing class for ages 18 and older. Glenarden/Theresa Banks Complex pool, 8615-A McLain Ave., Glenarden. $6; bi-county residents, $5. 301-772-5515.


"THE MATCHMAKER" -- 8 p.m. Friday and Saturday; 2 p.m. Sunday. Prince George's Little Theatre performs Thornton Wilder's comedy, set in the 1890s, about the pursuit of love and marriage. The Publick Playhouse, 5445 Landover Rd., Cheverly. Adults, $10; seniors and children 18 and under, $8. 301-277-1710.

AJAX MOVING COMPANY AND MSDC DANCE COMPANY -- 8 p.m. Saturday. Movement theater works by choreographer Ajax Joe Drayton and a modern dance piece called "Crash," performed by MSDC Dance Company. Joe's Movement Emporium, 3802 34th St., Mount Rainier. Adults, $12; students, $10; ages 16 and under, $5. 301-699-1819.

"DEATHTRAP" -- A thriller by Ira Levin. 8 p.m. Friday and Saturday, 2 p.m. Sunday. Greenbelt Arts Center, 123 Centerway, Greenbelt. $10; seniors and students, $8. 301-441-8770.

Lectures and Literature

ROBERT MIDDLEMISS -- 1 p.m. Saturday. Mystery author will discuss and sign "Lateral Line." Barnes & Noble, 15455 Emerald Way, Bowie. Free. 301-809-1552.

ANNIVERSARY CAKE CUTTING CEREMONY -- 6 p.m. Monday. To celebrate Karibu Books' 10th anniversary, W.E.S. Group Jazz Collective will perform, and there will be a raffle for a gift bag of books. Karibu Books, Prince George's Plaza, 3500 East West Hwy., Hyattsville. Free. 301-559-1140.


"SCHOOL OF FISH" ART EXHIBITION -- Through April 3. A display of works by former students of John Krumein, a professor for 30 years at Prince George's Community College. Marlboro Gallery, 301 Largo Rd. Largo. Free. 301-322-0920.

WOOD-TURNING -- Through March 30. Handcrafted bowls, vases and sculptures created by the Chesapeake Woodturners. Montpelier Mansion, 12826 Laurel-Bowie Rd., Laurel. Free. 301-953-1993. Free. 301-953-1376.

RADIO PREMIUMS -- Ongoing. Memorabilia related to the radio serials of the 1930s, '40s and '50s, including "Little Orphan Annie," "Buck Rogers in the 25th Century" and "Captain Midnight." The Radio-Television Museum, 2608 Mitchellville Rd., Bowie. Free. 301-390-1020.

"PICTURING VICTIMS AND PATRIOTS: PHOTOGRAPHS FROM THE DEPRESSION AND WORLD WAR II" -- Ongoing. Photographs illustrating New Deal social welfare programs. Photographers include Gordon Parks, Walker Evans, Marion Post Wolcott, Russell Lee, Arthur Rothstein and John Vachon. Greenbelt Museum, 15 Crescent Rd. Free. 301-507-6582.

"THE FORGOTTEN WAR REMEMBERED: AMERICA AND THE KOREAN WAR" -- Ongoing. Includes 20 photographs chronicling the war, from the growing tensions during the late 1940s through the signing of the armistice in 1953. National Archives at College Park, 8601 Adelphi Rd. Free. 301-713-6800.


HOLLYWOOD FLIERS MOVIE SERIES -- 11 a.m. Friday, 2 p.m. Saturday. "Spitfire," the story of Reginald Mitchell, designer of the Supermarine Schneider Trophy racers and the Spitfire. College Park Aviation Museum, 1985 Cpl. Frank Scott Dr. Free with museum admission: adults, $4; seniors, $3; students and children under 18. 301-864-6029.

PURIM CARNIVAL -- 3-6 p.m. Sunday. Beth Torah Congregation hosts a carnival and open house featuring a moon bounce, pony rides, scavenger hunt, arts and crafts, carnival games, live music and theatrical performances. 6700 Adelphi Rd., Hyattsville. The event is free, but tickets for activities are 50 cents each. Those who come in costume get five free tickets. 301-927-5525.

AFRICAN FILM SERIES-6 p.m. Sunday. Screening of "Faat Kine," a documentary about women's lives in contemporary Dakar, Senegal. Joe's Movement Emporium, 3802 34th St., Mount Rainier. $5. 301-699-1819.

Prince George's Extra Weekend section lists events as space permits. Mail notices noting date, time, address, cost and phone number to Weekend Section, The Washington Post, 14402 Old Mill Rd., Upper Marlboro, Md. 20772. The deadline is 10 days before publication date.