Largo children’s story time 10:15 a.m. for ages 2-3; 11:15 a.m. for ages 3-5, Largo Kettering Library, 9601 Capital Lane. Free. 301-336-4044.
District Heights story time, for ages 2-5 with caregivers. 10:30 a.m., Spauldings Library, 5811 Old Silver Hill Rd., District Heights. Free. 301-817-3750.
New Carrollton dance classes, a weekly class to learn how to square and line dance. $5. 7:15-8:30 p.m., Robert Frost Elementary School, 6419 85th Ave. Virginia Fromel at 301-552-1576.
Strawberry blossom tour, travel to Butler’s Orchard in Germantown for strawberry exploration and get a strawberry plant to take home. Lunch on your own. 9 a.m.-4 p.m., Langley Park Senior Activity Center, 1500 Merrimac Dr., Hyattsville. $15, $18 nonresidents of Prince George’s and Montgomery counties. Registration required. 301-408-4343.
Holy Trinity open house, for parents of students in first through eighth grade. Tour the upper and lower schools, meet staff, and review curriculum. 9:30-11:30 a.m., Holy Trinity Episcopal Day School, 11902 Daisy Lane, Glenn Dale. 301-262-5355.
Fallen Heroes Day, honor the lives of five police officers, one correctional officer and one firefighter. 1 p.m., Dulaney Valley Memorial Gardens, 200 East Padonia Rd., Timonium. 410-666-0490.
Largo jazz concert, an ensemble performs classic and modern jazz songs. 2-3 p.m., Prince George’s Community College, Marlboro Gallery, 301 Largo Rd., Largo. Free. 301-322-0965 or www.pgcc.edu.
Upper Marlboro fish fry, menu includes fried whiting or tilapia, green beans, coleslaw, bread, a beverage and dessert. 4-7 p.m., Trinity Episcopal Church, 14515 Church St. $10 adults, $8 seniors, $5 age 11 and younger. 301-627-2636.
Changes family science night, meet live animals, track planets and explore the night sky. 6-8:30 p.m., Howard B. Owens Science Center, 9601 Greenbelt Rd., Lanham. Free. 301-918-8750.
“The Wizard of Oz,” an adaptation of the classic story. 6:30-9:30 p.m., through May 10, Suitland Community Center, 5600 Regency Lane, Forestville. $15; $18 nonresidents of Prince George’s and Montgomery counties. 301-736-3518.
Campfire tales, for ages 10-17, create your own story by the campfire. 7-10 p.m., Good Luck Community Center, 8601 Good Luck Rd., Lanham. Free. 301-552-1093.
Youth Summit on Technology, K-12 students can learn about careers in science, technology, engineering and mathematics. 7:30 a.m.-3:30 p.m., Bowie State University, 14000 Jericho Park Rd., Bowie. Free, advance registration required. Irene Rogers at 301-925-9350 or email@example.com.
Jug Bay bird walk, for age 12 and older, learn how to identify birds by sight and sound. 8-11 a.m., Jug Bay Wetlands Sanctuary, 1361 Wrighton Rd., Lothian. 410-741-9330. Free with paid admission: $5; $3 seniors and children age 17 and younger. Registration required.
Flea market, breakfast, lunch, bake sale, vendors. Proceeds will benefit the mission program. 9 a.m.-1 p.m., College Park United Methodist Church, 9601 Rhode Island Ave., College Park. 301-345-1010 or firstname.lastname@example.org.
Beginner’s computer course, learn how to navigate Web sites using a mouse and keyboard. 9:15 a.m., through June 1, Oxon Hill Library, 6200 Oxon Hill Rd. Free, registration required. 301-839-2400.
Clinton Internet basics, for all ages and skill levels. 9:15 a.m., through May 18, Surratts-Clinton Library, 9400 Piscataway Rd. Free. 301-868-9200.
American Market, shop farm-fresh produce and meats, specialty foods, handmade crafts, jewelry and more. 10 a.m.-4 p.m., through Oct. 26, National Harbor, American Way, between Waterfront and Fleet Streets, National Harbor. 301-910-8076 or email@example.com.
Fishing workshop, learn how to rig a line, bait a hook, cast and more. 10 a.m.-noon, Merkle Wildlife Sanctuary, 11704 Fenno Rd., Upper Marlboro. Free, registration required. 301-888-1410.
Maryland House and Garden Tour, a multi-county tour of eight historic homes and gardens in Somerset and Worchester counties. 10 a.m.-5 p.m., Maryland House and Garden Pilgrimage, 1105-A Providence Rd., Towson, Md. $30 in advance, $35 day of tour. Registration required. 410-821-6933 or mhgp.org.
People and pups hike, for age 18 and older. 10-11:30 a.m., Watkins Regional Park, nature center, 301 Watkins Park Dr., Upper Marlboro. Free, reservations required. 301-699-2456.
Oceanic story time, a reading of Kevin Sherry’s “I’m the Biggest Thing in the Ocean” and Jan Peck’s “Way Down Deep in the Deep Blue Sea,” followed by ocean-themed activities. 10:15 a.m., 11:30 a.m. and 1:30 p.m. Saturday-Sunday, National Children’s Museum, 151 St. George Blvd., National Harbor. Free with paid admission: $10; age 65 and older $8; 1 and under, free. 301-392-2400.
Belmont Legacy: An Exhibition of Memory, Spirit and Imagination, master artists and designers from the District-based Belmont Arts showcase their works. 11 a.m.-7 p.m. Saturday-Sunday, Urban Eats Arts and Music Cafe, 3311 Rhode Island Ave. 100A, Mount Rainier. Free. 301-209-8023 or www.belmontarts.com.
Young Historians program, for ages 9-15, a hands-on history program to learn about the 19th century through field trips, demonstrations, book readings, debates and more. 11 a.m.-12:30 p.m. the first Saturday of each month, Battle of Bladensburg Visitors Center, 4601 Annapolis Rd., Bladensburg. 301-779-0371.
English-French story time, for ages 2-7. 11 a.m., Surratts-Clinton Library, 9400 Piscataway Rd., Clinton. Free. 301-868-9200.
Greenbelt gardening workshop, learn how to grow vegetables in containers. 11 a.m., Greenbelt Library, 11 Crescent Rd. Free. 301-345-5800.
Laurel chess club, learn to play or improve your game. 1 p.m., Laurel Library, 507 Seventh St. Free. 301-776-6790.
Princess tea party social, for girls ages 2-12, games, crafts, music, dancing and more. 1-4:30 p.m., Upper Marlboro Community Center, 5400 Marlboro Race Track Rd. $1, reservations required. 301-627-2828.
“Dream Girls,” travel to Baltimore to watch the musical at Lyric Opera House. 2-7 p.m., Langley Park Senior Activity Center, 1500 Merrimac Dr., Hyattsville. $72; nonresidents of Prince George’s and Montgomery counties, $87. Reservations required. 301-408-4343.
Container gardening, learn how to grow vegetables in pots. 2 p.m., Largo Kettering Library, 9601 Capital Lane, Largo. 301-336-4044.
Tennis festival, an introductory clinic for ages 5-12, play games and perform agility drills. 3-5 p.m., Tennis Center at College Park, 5200 Paint Branch Pkwy. Free. David McIsaac at 301-779-8000 or thetccp.com or firstname.lastname@example.org.
Student art show, view works by students. 6-9 p.m., St. Columba’s Episcopal Church, School, 4201 Albemarle St. NW. Free. 202-363-4119 or stccatholic.org.
Mother’s Day craft project, for ages 10-17. 7-10 p.m., Langley Park Community Center, 1500 Merrimac Dr., Hyattsville. Free. 301-445-4508.
Annual Pops Concert, Performances by the University of Maryland Wind Ensemble, University Band and Community Band. 8 p.m., Clarice Smith Performing Arts Center, Dekelboum Concert Hall, University of Maryland, Route 193 and Stadium Drive, College Park. $25; seniors, staff and alumni $20; students and youth $10. Reservations required. 301-405-2787 or www.claricesmithcenter.umd.edu.
Star party, explore the sky through a variety of telescopes. Sponsored by the Astronomy Club of Southern Maryland. 8:30-10 p.m., Merkle Wildlife Sanctuary, 11704 Fenno Rd., Upper Marlboro. Free. 301-888-1410.
Spring bird trip, a guided walk to look for migrant warblers, flycatchers, and other birds. Meet at parking lot. 6 and 7 a.m., Governor Bridge Natural Area, 7600 Governor Bridge Rd., Bowie. RSVP. 301-509-2212 or email@example.com.
Cinco de Mayo 5K, the Bowie Baysox, in partnership with the DC Running Club, will host a 5k run and kids fun run to benefit the Bowie Health Center, Bowie Police Explorers and Louie’s Holiday Hope Project. 9:30 a.m., Bowie Baysox Stadium, 4101 NE Crain Hwy. $35, registration required by May 3. 301-653-6139.
Antique Cadillac showcase, featuring classic cars, with an awards presentation. Sponsored by the Potomac Region Cadillac and LaSalle Club. 10 a.m., Capitol Cadillac, 6500 Capitol Dr., Greenbelt. 301-894-8026 or www.clcpotomacregion.org.
Bostwick Spring Festival, tours, demonstrations and other family-friendly events. Noon-5 p.m., Bostwick House, 3901 48th St., Bladensburg. Free. 301-927-7048, or www.marylandmilestones.org or calendar.visitmaryland.org.
Music and ceramics workshop, an interactive performance by Junk Jam, the band that uses 125 junk objects to make music; ceramic tile workshop, prize drawing, art exhibit and more. Part of the Artful Afternoon program. 1-4 p.m., Greenbelt Community Center, 15 Crescent Rd., Greenbelt. 301-397-2208 or www.greenbeltmd.gov/arts.
Habitat detectives, for ages 5-7, explore habitats and native wildlife. 2-3:30 p.m., National Wildlife Visitor Center, 10901 Scarlet Tanager Loop, Laurel. Free, registration required, donations welcome. 301-497-5887.
Open studio event, meet artists and view new work. 2-5 p.m., Passageways Studios, 6001 66th Ave., East Pines Center, Riverdale. Free. 301-459-8038.
Music at Paint Branch, cellist Barbara Brown and pianist David Chapman perform works by Beethoven, Poulenc, and Rachmaninoff. 4 p.m., Paint Branch Unitarian Universalist Church, 3215 Powder Mill Rd., Adelphi. Free, donations welcome. 301-949-8984 or www.PBUUC.org.
University of Maryland Wind Orchestra, The orchestra is joined by members of Orpheus Chamber Orchestra in a performance of Mozart and Varese. 5 p.m., Clarice Smith Performing Arts Center, Dekelboum Concert Hall, University of Maryland, Route 193 and Stadium Drive, College Park. $25; seniors, $20; students, $10. 301-405-2787.
Nature tots: busy bees, for ages 3-4, an interactive program to learn how bees help create food and flowers. 10:30-11:30 a.m. and 1-2 p.m., National Wildlife Visitor Center, 10901 Scarlet Tanager Loop, Laurel. Free, registration required, donations welcome. 301-497-5887.
Botany study group, learn about major plant families, botany terminology and identification skills using the book “Botany in a Day,” by Thomas Elpel. 6:30-8:30 p.m., first Monday of each month, Piscataway Park, 3400 Bryan Point Rd., Accokeek. $95, registration required. 301-763-4600.
With Pen in Hand writers group, for authors of all genres, published or not, critique and bring your work to be critiqued. 7 p.m., Bowie Library, 15210 Annapolis Rd., Bowie. Free. 301-262-7000.
Clinton crochet workshop, learn basics or practice skills. 7 p.m., Surratts-Clinton Library, 9400 Piscataway Rd. Free. 301-868-9200.
Personal finance workshop, for adults, learn techniques for budgeting and planning for retirement, including balancing a checkbook, credit scores, debt ratios and more. 7 p.m. Mondays, Oxon Hill Library, 6200 Oxon Hill Rd., Oxon Hill. Free, registration required. 301-839-2400.
Camera club competition, bring your best shot to compete, or help judge. Sponsored by the Bowie-Crofton Camera Club. 7:30 p.m., All Saints Lutheran Church, 16510 Mount Oak Rd., Bowie. Free. 301-604-7772 or www.b-ccc.org.
Special needs story time, A story time to build music and motor skills for children age 3 and younger with special needs. 10 a.m., Oxon Hill Library, 6200 Oxon Hill Rd., Oxon Hill. Free. 301-839-2400.
Brandywine gardening workshop, learn about planting herbs, vegetables and flowers. 2 p.m., Baden Library, 13603 Baden-Westwood Rd., Brandywine. Free. 301-888-1152.
Boys reading program, for grades 3-4, practice reading skills with games and other activities. 4 p.m., Oxon Hill Library, 6200 Oxon Hill Rd., Oxon Hill. Free. 301-839-2400.
Bowie chess club, learn to play or improve your skills. 6 p.m., Bowie Library, 15210 Annapolis Rd. Free. 301-262-7000.
Upper Marlboro chess club, learn to play or improve your game. 6 p.m., Upper Marlboro Library, 14730 Main St. Free. 301-627-9330.
African American history lecture, historian C.R. Gibbs gives a presentation titled, “A New Day Begun: The Impact of the Emancipation Proclamation on the District, Maryland and Virginia.” 7 p.m., Greenbelt Library, 11 Crescent Rd., Greenbelt. Free. 301-345-5800.
Naturalization workshop, learn the process of becoming an American citizen. 7 p.m., Laurel Library, 507 Seventh St., Laurel. Free, registration required. 301-776-6790.
Business awards breakfast, the Greater Bowie Chamber of Commerce and City of Bowie Economic Development Committee sponsor this event to honor local businesses in a variety of categories. 7:30-9:30 a.m., Comfort Inn Hotel and Conference Center, 4500 Crain Hwy. $30, registration required. 301-780-8976 or www.bowiechamber.org.
Kid’s Day Out: Ball in the House, The a cappella group Ball in the House teach children how to make different sounds using their voices. 10:30 a.m., Arts/Harmony Hall Regional Center, 10701 Livingston Rd., Fort Washington. 301-203-6070.
Bowie book talk, a librarian leads a discussion about Laura Hillenbrand’s “Unbroken: A World War II Story of Survival, Resilience, and Redemption.” 7:15 p.m., Bowie Library, 15210 Annapolis Rd. Free. 301-262-7000.
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