SENIOR EXERCISE AND SWIMMING, for people 60 and older, use of a fitness center and a swimming pool. 8 a.m.-noon Fridays, Mondays and Wednesdays, Prince George's Sports & Learning Complex, 8001 Sheriff Rd., Landover. Free; nonresidents of Prince George's and Montgomery counties, $8. Pool only for nonresidents, $5. 301-583-2400 or www.pgsportsandlearn.com.
NATURE CENTER EVENT, children 2 and older meet animals and learn about their behavior and habitats. 11 a.m.-noon, Clearwater Nature Center, 11000 Thrift Rd., Clinton. $1; nonresidents of Prince George's and Montgomery counties, $2; registration required. 301-297-4575.
AVIATION MUSEUM GUIDED TOURS, 11 a.m. and 1 p.m., College Park Aviation Museum, 1985 Cpl. Frank Scott Dr., College Park. Free with regular museum admission: $4; seniors, $3; ages 18 and younger, $2. 301-864-6029 or www.collegeparkaviationmuseum.com.
OXON HILL BLOOD DRIVE, sponsored by the Oxon Hill Friendly Lions Club and the American Red Cross; donations of used eyeglasses and hearing aids will be accepted for recycling. 2:30-7 p.m., Oxon Hill Fire Department, 7600 Livingston Rd., Oxon Hill. 301-839-2742.
INTERNET CLASS, for ages 18 and older, how to navigate the Internet. 6:30-8:30 p.m. Monday and Wednesday, Prince George's Sports & Learning Complex, 8001 Sheriff Rd., Landover. $30; nonresidents of Prince George's and Montgomery counties, $36. Registration required. 301-583-2430 or www.pgsportsandlearn.com.
BOWIE-CROFTON CAMERA CLUB, photographers Dick Russell and Scott Swanson discuss how to format, store and organize digital photographs; also, a public club meeting. 7:30 p.m., All Saints Lutheran Church, 16510 Mount Oak Rd., Bowie. Free. 301-464-4212 or www.b-ccc.org.
WREATH WORKSHOP, for ages 13 and older, registration deadline for a Dec. 4 holiday wreath-making workshop; materials provided. Sponsored by the South Laurel Recreation Council Inc. The workshop will be held 1:30-4 p.m. Deerfield Run Community Center, 13000 Laurel-Bowie Rd., Laurel. $12. 301-776-2805.
LANGLEY PARK BRIDGE GAMES, for ages 60 and older. 9 a.m.-2 p.m., Langley Park Senior Center, 1500 Merrimac Dr. Free. 301-408-4343.
OXON HILL CHESS CLUB, for all ages, tips from instructor Chris Sevilla. 7 p.m., Oxon Hill Library, 6200 Oxon Hill Rd., Oxon Hill. Free. 301-839-2400.
STOCK MARKET CLASS, for ages 18 and older, how to read and analyze stock tables. 7-9 p.m. Tuesdays through Dec. 20, Prince George's Sports & Learning Complex, 8001 Sheriff Rd., Landover. $50; nonresidents of Prince George's and Montgomery counties, $60. Registration required. 301-583-2430 or www.pgsportsandlearn.com.
FAIRMOUNT HEIGHTS STORY TIME, for ages 3-5. 10:30 a.m., Fairmount Heights Library, 5904 Kolb St., Fairmount Heights. Free. 301-883-2650.
SENIOR WOMEN'S SELF DEFENSE CLASS, for ages 55 and older. 12:30-2:30 p.m., Camp Springs Senior Center, 6420 Allentown Rd., Camp Springs. Free. 301-449-0490.
COMPUTER CLASSES, for people 60 and older, classes in the components of a computer system, computer games and maintenance. 10-11 a.m. Thursdays through Dec. 22, Beltsville Community Center, 3900 Sellman Rd., Beltsville. $25; nonresidents of Prince George's and Montgomery counties, $30. Registration required. 301-937-6613.
BELTSVILLE STORY TIME, for ages 3-5, in English and Spanish. 10:30 a.m., Beltsville Library, 4319 Sellman Rd., Beltsville. Free. 301-937-0294.
BIRD STUDY PROGRAM, for home-schooled students ages 8-12, an interactive program to learn about different types of birds and their habitats. 1-3 p.m., National Wildlife Visitor Center, Powder Mill Road (between Baltimore-Washington Parkway and Route 197), Laurel. Free; registration required. 301-497-5887.
-- Compiled by LISA MARTIN
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