DREAMOSAURUS -- Today at 11:30 a.m. and 1 p.m., Wednesday-Friday at 10 and 11:30 a.m., Sept. 5 at 11:30 a.m. and 1 p.m. Friendly dinosaurs help a young boy get rid of his nightmares. Glen Echo Park, Puppet Co. Playhouse, 7300 MacArthur Blvd., Glen Echo. $7, younger than two free. 301-320-6668.

MODERN ARF SIDEWALK CHALK PAINTING -- Today,

1-3 p.m. Learn the art of sidewalk painting at the

Museum of Modern Arf.

Meet by the Clarendon

Metro. 1116 N. Hudson St., Arlington. Suggested donation $8-$10. For reservations, call 703-528-4800.

ADJOA J. BURROWES -- Today, 3-5 p.m. The author

and illustrator of "Grandma's Purple Flowers" talks about the process of creating children's books and demonstrates her paper-collage technique. Illustrate a haiku or poem of your own. Anacostia Museum and Center for African American History and Culture, 1901 Fort Pl. SE. Free. For reservations, call 202-610-3292.

CRAZY CONSTRUCTION FOR KIDS -- Sept. 5, 1-5 p.m. Make model buildings with shiny construction materials after examining Frank Gehry's unique architecture in the exhibit "Symphony in Steel: Ironworkers and the Walt Disney Concert Hall." National Building Museum, 401 F St. NW. $4 per building. 202-272-2448.