- “Saturday Morning at the National” will feature Groovy Nate. 9:30 and 11 a.m. Free; reservations suggested. Helen Hayes Gallery, National Theatre, 1321 Pennsylvania Ave. NW. thenationaldc.org/saturday-morning-at-the-national.
- Culture Queen will present “Rise + Rhyme,” a storytelling and performance series for ages 5 and younger. 9:30 to 11 a.m. $5 per child. Busboys and Poets Takoma, 235 Carroll St. NW. 202-726-0856.
- As part of Weekend Family Matinees and Nordic Film Week, the Avalon Theatre will present “Nordic Family Short Films,” featuring “The Swedish Meatballs,” “Whistleless” and “Herman’s Heart,” among others. 10 a.m. $4.50 to $6. Avalon Theatre, 5612 Connecticut Ave. NW. 202-966-6000.
- A park ranger will lead a planetarium program about the season’s brightest stars, planets and constellations (for ages 5 and older). 1 p.m. Free. Rock Creek Nature Center, 5200 Glover Road NW. 202-895-6070.
- Children will hear a story about Cesar Chavez and then create a special piece of art. 1 to 4 p.m. Free. National Portrait Gallery, 8th and F streets NW. 202-633-1000. The program will repeat Sunday from 1 to 4 p.m.
- Georgetown’s City Kids Theater will present “The Adventures of the Extra Ordinary Super Heroes,” a new play written by Nan and Ray Ficca and directed by Ray Ficca (for ages 5 to 13). 1 and 3 p.m. Free; reservations requested. Georgetown Lutheran Church, 1556 Wisconsin Ave. NW. citykidstheater.org. The performance will repeat Sunday at 1 and 3 p.m.
- The House of Sweden will host a weekly storytime for children and families to experience Swedish children’s literature. 2 p.m. Free. House of Sweden, 2900 K St. NW. www.swedenabroad.com/washington.
- A park ranger will lead a planetarium program about the solar system, the Milky Way and other deep space objects (for ages 7 and older). 4 to 4:45 p.m. Free. Rock Creek Nature Center, 5200 Glover Road NW. 202-895-6070.
Classes and workshops
- Gayla April will present a weekly dance/exercise class. 9:30 a.m. Free; reservations required. Guy Mason Recreation Center, 3600 Calvert St. NW. 202-727-7527.
- The Mount Pleasant Library will present “Saturday Morning Yoga.” 10 a.m. Free. Mount Pleasant Library, 3160 16th St. NW. 202-671-3122.
- Volunteers from the Washington English Center will lead an “ESL Conversation Circle” for English learners who already have some knowledge of the language. 10 a.m. Free. Tenley-Friendship Library, 4450 Wisconsin Ave. NW. 202-727-1488.
- Heather Markowitz, founder of WithLoveDC, will lead a “Practice With Love” yoga class. 10:30 to 11:30 a.m. Free. National Garden Lawn Terrace, U.S. Botanic Garden, 100 Maryland Ave. SW. 202-225-8333.
- The Mayor’s Office on Asian and Pacific Islander Affairs will host a tai chi class. 10:45 to 11:45 a.m. Free. Chinatown Park, 5th Street and Massachusetts Avenue NW. 202-727-3120.
- Yoga Activist will present a class for beginners. 11 a.m. Free. Petworth Library, 4200 Kansas Ave. NW. 202-243-1188.
- In conjunction with its production of “The Arsonists,” Woolly Mammoth Theatre Company will present a workshop on “Complicity and Crafting Community Dialogue” led by arts practitioner Elena Velasco. 5 to 7 p.m. Free; reservations requested. Melton Rehearsal Hall, Woolly Mammoth Theatre Company, 641 D St. NW. woollymammoth.net.
- The Miami Fine Arts Academy will present a recital by student musicians and vocalists performing classical, Broadway, film and popular music. 1 p.m. $25. Family Theater, Kennedy Center. 202-467-4600.
- The Petworth Jazz Project will present a children’s show by Baba Ras D, at 5 p.m.; and a concert by singer Akua Allrich, from 6:30 to 8 p.m. Free. Lawn, Petworth Recreation Center, 8th and Taylor streets NW. facebook.com/PetworthJazzProject.
- Using bamboo rattle instruments from West Java, House of Angklung will take the audience on a melodic and rhythmic journey to the rich culture of Sumatra in a collaborative performance with local groups Sarohas and Rumah Gadang USA. 6 p.m. Free. Millennium Stage, Kennedy Center. 202-467-4600.
- The “Music with the Angels” concert series will feature pianist Faith Zúñiga, violinist Anna Kong and cellist Zachary Whitaker performing works by Mozart, Rachmaninoff, Schoenfield and Placzek. 7 p.m. Free admission; $10 donations welcome. Church of the Holy City, 1611 16th St. NW. 202-462-6734.
- The Capital Hearings will present its seventh annual fall concert, “Path to Here,” featuring a diverse repertoire of classical, jazz and pop a cappella music to celebrate the release of the group’s second album, “When the Night Is New.” 8 p.m. $20 to $25. First Congregational United Church of Christ, 945 G St. NW. thecapitalhearings.com.
- The National Symphony Orchestra and organist Cameron Carpenter will perform favorites by Bernstein and Adams. 8 p.m. $15 to $89. Concert Hall, Kennedy Center. 202-467-4600.
Discussions and lectures
- U.S. Botanic Garden science education volunteer Todd Brethauer will discuss legumes and their ability to produce nitrogen fertilizer from the air due to the relationship they establish with certain common soil bacteria. 10:30 a.m. to noon. Free; reservations required. Conservatory Classroom, U.S. Botanic Garden, 100 Maryland Ave. SW. 202-225-8333.
- Andrea Jarrell will discuss her memoir “I’m the One Who Got Away” in conversation with Bill O’Sullivan. 1 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- American University associate professor Derek S. Hyra will discuss his book “Race, Class, and Politics in the Cappuccino City” in conversation with Kymone Freeman, an activist and co-owner of Anacostia-based We Act Radio AM. 3:30 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- Eileen Myles will discuss her book “Afterglow (a dog memoir).” 6 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- In conjunction with its production of “The Arsonists,” Woolly Mammoth Theatre Company will present a panel discussion on “Facing Fascism: How Did We Get Here?” 9:30 p.m. Free; reservations requested. Melton Rehearsal Hall, Woolly Mammoth Theatre Company, 641 D St. NW. woollymammoth.net.
Family programs and festivals
- The D.C. Department of Parks and Recreation will host the third annual “DPR Rec Day,” featuring live entertainment, fitness classes, a rock wall, face painting, a video game competition, a giant chess set, amateur boxing, an obstacle course, a moon bounce, fashion shows and giveaways. 11 a.m. to 4 p.m. Free; reservations requested. Randall Recreation Center, South Capitol and I streets SW. dcrecreationday.splashthat.com.
- Hispanic Heritage Month Family Day will feature a bilingual program with live music, art activities and curator talks celebrating the Latino cultures, traditions and stories that have helped shape the United States. 11:30 a.m. to 3 p.m. Free. Kogod Courtyard, National Portrait Gallery, 8th and F streets NW. 202-633-1000.
- The Mount Pleasant Library will present Tom Cruise’s 2017 remake of “The Mummy.” 2 p.m. Free. Mount Pleasant Library, 3160 16th St. NW. 202-671-3122.
- “From Vault to Screen: Recent Restorations From the Academy Film Archive” will present “Key Frames and Inbetweens: Restored 35mm Experimental Animation,” featuring a program of animated films, at 2 p.m.; and “Pacific Coast Highway: Restored California Psychedelia,” featuring works by celebrated American independent experimental filmmakers and artists, at 4 p.m. Free. East Building Auditorium, National Gallery of Art, 4th Street and Pennsylvania Avenue NW. 202-737-4215.
- The Theater Alliance’s Word Becomes Action Festival — an exploration of the diversity of experiences and narratives of the African diaspora — will feature a staged reading of “The Raid” by Idris Goodwin. 8 p.m. $20. Anacostia Playhouse, 2020 Shannon Place SE. theateralliance.com.
- The D.C. National Guard Wellness Blaze will feature a 5K, a 1-mile fun run/walk and a wellness expo with guest speakers and vendors. 8 a.m. to 2 p.m. Free; registration requested. D.C. Armory, 2001 East Capitol St. SE. wellnessblaze5kfunrun.eventbrite.com.
- The DC Walk for the Animals will feature a one-mile walk around the Capitol Riverfront area, as well as a costume contest, adoptable animals, exhibitors, and food and beverage vendors. Proceeds will benefit the Humane Rescue Alliance. 11 a.m. to 5 p.m. $35. Yards Park, 4th and Water streets SE. dcwalkfortheanimals.org.
- The D.C. Public Library Foundation will host “Uncensored Underground” — the culmination of Banned Books Week and the group’s annual fundraiser, featuring signature cocktails, live music, a pop-up market and more. 7 to 10 p.m. $50. Dupont Underground, 19 Dupont Circle NW. dcplfoundation.org.
- The Washington Nationals will play the Pittsburgh Pirates. 7:05 p.m. $12 to $370. Nationals Park, 1500 South Capitol St. SE. 888-632-6287. The series will continue Sunday at 3:05 p.m.
Walks and tours
- A park ranger will lead a walk through Georgetown Waterfront Park and discuss Georgetown’s evolution from an active port town (for ages 7 and older). 11 a.m. Free. Meet at the fountain in the Georgetown Waterfront Park, Wisconsin Avenue and K Street NW. 202-895-6070.
- In partnership with The Atlantic magazine, the National Portrait Gallery will present a gallery tour highlighting American writers featured in the 160-year-old publication’s pages during the 19th century, at 11:45 a.m.; and writers featured in the 20th century, at 1:30 p.m. Free. G Street lobby, National Portrait Gallery, 8th and F streets NW. 202-633-1000. The tours will also be offered on Sunday at the same times.
- A park ranger will lead “Seasonal Discovery Nature Walk: Rapids Bridge Loop.” 1 to 3 p.m. Free. Meet at the Rock Creek Nature Center, 5200 Glover Road NW. 202-895-6000.
- Tour guide Dwane Starlin will lead a “Fall Cupcake Tour” with stops at Baked & Wired, Sprinkles and Georgetown Cupcake for complimentary seasonal treats. 1 to 3 p.m. $28 to $30; reservations requested by Sept. 28 at noon. Meet at 27th and Q streets NW. dumbartonhouse.org/events.