If the word “culture” has become synonymous with “strep test,” it’s likely that you’re suffering from an acute case of mom brain.

Time to call the sitter and re-engage.

VISUAL ART
Last Known Exposure: End-of-year glitter project at preschool.
The Rx: Spend an afternoon at The Frick Collection (1 East 70th Street; 212-288-0700). This former private home showcases opulent oil paintings by Whistler, Vermeer, Rembrandt, and Goya, plus it’s only for the 10 and over set (their rules, not ours).
Bonus: This Saturday, A Grand Conversion: Transforming the Frick Residence into a Museum to commemorate its 75th anniversary. (Tickets, including the lecture, $18 at the door.)

LIVE MUSIC
Last Known Exposure: You think you remember a night at the Fez, circa ’92.
The Rx: The Mingus Bands at The Jazz Standard (116 East 27th Street).
Bonus: Mingus Mondays, a musical celebration of jazz legend Charles Mingus, coupled with killer barbecue from Blue Smoke. (Ongoing, 7:30 and 9:30 p.m.; tickets at 212-576-2232, $25).

THE BALLET
Last Known Exposure: Pink tutus and tiaras spinning in your living room.
The Rx: Catch Darci Kistler in a farewell performance at Lincoln Center (West 63rd Street, at Columbus Avenue).
Bonus: Dances from favorites like Swan Lake and A Midsummer Night’s Dream. (Sunday, 3 p.m.; tickets at 212-721-6500 or online at nycballet.org, $20 and up.)

BUILD
Lego Store Opens
What: A master builder bar, a pick-a-brick wall, and more than 300 building sets ($1-$500) will delight all ages.
Why: Check out the brick-filled birthday party space.
When: Opens Thurs. Mon.-Sat., 10 a.m.-8 p.m.; Sun., 11 a.m.-7 p.m.
Where: 620 Fifth Ave., b/t 49th & 50th Sts. (800-453-4652).

LEARN
Children of Hangzhou
What: Kids step into the daily life of a real Chinese family — everything from school to a rice field.
Why: Learn by experience.
When: Sat.-Sept. 5. Wed.-Fri., 11 a.m.-5 p.m.; Sat. & Sun., 10 a.m.-5 p.m.
Where: Brooklyn Children’s Museum, 145 Brooklyn Ave., Crown Heights (718-735-4400). Adults and children 1 and up, $7.50.

PLAY
CityParks Kids Bronx Family Day
What: Celebrate summer with tunes by BombaYo and Dan Zanes, plus dancing, storytelling, and more.
Why: A selection of melodies and cultures from around the world.
When: Sun., noon-3 p.m.
Where: St. Mary’s Park, E. 149th St., at Jackson Ave., The Bronx. Info at cityparksfoundation.org. Admission is free.

Photo: Michael Bodycomb