Visitors to The Leonardo this Saturday will get a bonus for their buck: performance by - -and a chance to participate with -- dancers from Repertory Dance Theatre. ---

At four times on Feb. 18 -- 11:30 a.m.,  12 p.m., 12:30 p.m. and 1 p.m. -- RDT will lead short 20-minute "movement explorations" at The Leonardo on the theme of air pollution, its effects and how to mitigate them. Guests are invited to join in the "gentle and fun" activity that requires no special dance background.

Then, at 2 p.m., the dancers will present a performance around, and inspired by, Amy Caron's 4,000 square foot, 20-foot-high "Holotype" sculpture, an installation inspired by algae. The original choreography will take the dancers through, inside and around the piece in a unique site-specific work.

The Leonardo is open 11 a.m. - 7 p.m. on Saturday.