DISTRICT HEIGHTS STORY TIME, for ages 3-5. 10:30 a.m., Spauldings Library, 5811 Old Silver Hill Rd., District Heights. Free. 301-817-3750.
ONLINE HOMEWORK HELP, for students in grades 4-12, tutoring in math, science, social studies and English from teachers, university professors and graduate students. 2 p.m.-midnight daily; Spanish-speaking tutors in math and science, 2-10 p.m. Sundays-Thursdays. Available at all branches of the Prince George's County Memorial Library System and through the library's Web site, www.pgcmls.info.
SEABROOK SCHOOLHOUSE, tours of a one-room schoolhouse built in 1896, sponsored by the Maryland-National Capital Park and Planning Commission. 11 a.m.-3 p.m, 6116 Seabrook Rd., Seabrook. Free. 301-464-5291.
EMPLOYMENT WORKSHOP, for ages 13 and older, tips on how to seek and retain a job. 7-9 p.m., Glassmanor Community Center, 1101 Marcy Ave., Oxon Hill. Free. 301-567-6033.
WRITERS GROUP, includes open readings of all types of writing, a publishing workshop and spontaneous writing sessions, sponsored by the Greenbelt Writers Group. 7:30 p.m., Greenbelt Community Center, 15 Crescent Rd., Greenbelt. Admission, free; annual membership fee to join the group, $7.50. 301-204-3579 or www.geocities.com/thegwg.
WORLD WAR II PROGRAM, "51st Engineers Battalion Encampment," reenactors demonstrate daily life, weaponry and military training of a typical soldier in Europe during World War II. 9 a.m.-3 p.m. Marietta House Museum, 5626 Bell Station Rd., Glenn Dale. Free. 301-464-5291.
MATH SAT PREPARATION, for ages 13-18. 10-11:30 a.m. Saturdays, through Aug. 20, Prince George's Sports & Learning Complex, 8001 Sheriff Rd., Landover. $225; nonresidents of Prince George's and Montgomery counties, $270. Reservations required. 301-583-2430 or www.pgsportsandlearn.com.
UPPER MARLBORO COMMUNITY DAY, games, a moon bounce, pony rides, music, displays, health screenings and food vendors. Noon-6 p.m., Kettering/Largo Community Center, 431 Watkins Park Dr., Upper Marlboro. Free admission; charges for refreshments and some activities. 301-390-8390.
WOMEN'S SELF-DEFENSE, for ages 16 and older, workshop taught by a black-belt judo instructor, sponsored by the Maryland-National Capital Park and Planning Commission. 1-4 p.m., Glenn Dale Community Center, 11901 Glenn Dale Blvd., Glenn Dale. $15; nonresidents of Prince George's and Montgomery counties, $18. Registration required. 301-352-8983.
OUTDOOR GOSPEL GO-GO CONCERT, for all ages, performances by Tamika Law, New Life Gospel Go-Go Band, Beyond the Faces Mime Group and Ten Commandments Band, sponsored by the Maryland-National Capital Park and Planning Commission. 6-9 p.m., Suitland Community Center, 5600 Regency Lane, Suitland. Free admission; refreshments for sale. 301-736-3518.
BOWIE FARMERS MARKET, vegetables, fruits, flowers and baked goods. 8 a.m.-noon, Gallant Fox Lane and Route 197, Bowie. Free. 301-809-3076.
LARGO MOVIE, for ages 13-18, "Lemony Snicket's A Series of Unfortunate Events" (2004), starring Jim Carrey, about orphans left in the care of the devious Count Olaf. 6:30 p.m., Largo-Kettering Library, 9601 Capital Lane, Largo. Free. 301-336-4044.
HILLCREST HEIGHTS CHESS CLUB, for all ages, tips from instructor Paul Yates. 6:30 p.m., Hillcrest Heights Library, 2398 Iverson St., Hillcrest Heights. Free. 301-630-4900.
ANIMALS AND THEIR HABITATS, for ages 2 and older, 10-11 a.m., Clearwater Nature Center, 11000 Thrift Rd., Clinton. $1; nonresidents of Prince George's and Montgomery counties, $2. Registration required. 301-297-4575.
PUPPET PLAYS, the Kaydee Puppets in "Roarin' Good Lion Tales" and "Rumpelstiltskin." 1 p.m., Fairmount Heights Library, 5904 Kolb St., Fairmount Heights. Free. 301-883-2650.
CLINTON BOOK DISCUSSION, Tia Williams's novel "The Accidental Diva," about a young African American beauty editor at a New York magazine and her romantic relationship with a man whose past is complicated. 6:30 p.m., Surratts-Clinton Library, 9400 Piscataway Rd., Clinton. Free. 301-868-9200.
ICE CREAM DAY, for ages 5-12. 4 p.m., Langley Park Community Center, 1500 Merrimac Dr., Langley Park. Free; registration required by Tuesday. 301-445-4508.
SKIN CARE WORKSHOP, for ages 12 and older. 6-8 p.m., Temple Hills Community Center, 5300 Temple Hill Rd., Temple Hills. Free; registration required. 301-894-6616.
CLINTON OUTDOOR CONCERT, for all ages, Gridlock Band and Show will perform; bring picnic baskets and blankets or lawn chairs. 7:15-8:45 p.m., Stephen Decatur Community Center, 8200 Pinewood Dr., Clinton. Free. 301-297-4648.
SENIOR CARNIVAL, for ages 60 and older, bring pennies and play carnival games; refreshments . 10:30 a.m.-noon, Camp Springs Senior Center, 6420 Allentown Rd., Camp Springs. $1; nonresidents of Prince George's and Montgomery counties, $2. Reservations required. 301-449-0490.
FAIRMOUNT HEIGHTS MOVIE, for ages 13-18, "Spider-Man 2" (2004), starring Tobey Maguire and Kirsten Dunst. 3:30 p.m., Fairmount Heights Library, 5904 Kolb St., Fairmount Heights. Free. 301-883-2650.
HYATTSVILLE FAMILY FUN NIGHT, includes a puppet show, magic show, face painting, a moon bounce and clowns, sponsored by the Hyattsville Recreation Department. 6:30-8:00 p.m., 31st and Hamilton streets, Hyattsville. Free; refreshments for sale. 301-985-5020.
BOWIE OUTDOOR ANIMATED MOVIE, "Shark Tale" (2004), with the voices of Will Smith and Robert De Niro. Bring blankets or lawn chairs; refreshments for sale. 8:45 p.m., Allen Pond Park, 3330 Northview Dr., Bowie. Free. 301-809-3068.
-- Compiled by LISA MARTIN
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