Book signing Curtis Harris will sign copies of the suspense thriller “High Hand.” 1 to 4 p.m. Free. International Spy Museum, 800 F St. NW. 202-393-7798. Classes and workshops The Kadampa Meditation Center will host a weekly class on meditation….

Children’s programs “Tudor Tots: Squirrels and Acorns” will feature songs, stories and movement (for ages 2 through 4). 10 a.m. $5; free for accompanying adults. Tudor Place Historic House and Garden, 1644 31st St. NW. tudorplace.org. The fall “Tudor…

Children’s programs Take a trip to space at the National Park Service’s Young Planetarium. Recommended for children ages 4 to 10. 4 p.m. Free; tickets are first-come, first-serve. Rock Creek Park Nature Center, 5200 Glover Road NW….

Children’s programs Construct a model city out of recyclables to display in the Great Hall of the National Building Museum at the “Designing For Our Changing World”-themed family afternoon. At this event, student teams from the DiscoverE…

Classes and workshops Science of Spirituality will begin a four-week course on Jyoti Meditation, or “meditation on the inner light,” which will repeat Mondays. 7 to 8:30 p.m. Free; registration required. Science of Spirituality Meditation Center, 2950…

Children’s program Banjo Man 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. Class The “Explore the Arts”…

Classes and workshops Kripalu yoga teacher Eva Blutinger will lead a “Yoga in the Galleries” class. 10 a.m. $5 to $10. American University Museum, Katzen Arts Center, American University, 4400 Massachusetts Ave. NW. 202-885-1300. St. Paul’s Episcopal Church, Rock…

Class Instructor Tara Bishop will lead a weekly “Yoga for All” restorative yoga practice. 7:30 p.m. Free. Juanita E. Thornton/Shepherd Park Library, 7420 Georgia Ave. NW. 202-541-6100. Concerts The First Wednesday Concert series will feature the U.S. Air Force String…

Children’s programs A park ranger will explain animal adaptations. 12:30 p.m. Free. Rock Creek Nature Center, 5200 Glover Road NW. 202-895-6000. A park ranger will lead a planetarium program about the season’s brightest stars, planets and constellations (for ages…

Children’s programs Hillwood’s March preschool series, “Fanciful Heroes,” will take children ages 2 to 5 on an imaginative tour of the estate that includes hunting for dragons and making heros’ capes. 10:30 to 11:15 a.m. $25 to $30 for…