Staged with half life-size marionettes, Peter and the Wolf is one of the Puppet Co.’s best-loved stories. Over a million children and adults have seen this one-man show, based on Prokofiev’s popular tale of good versus evil, performed by Puppet Master Christopher Piper. An introduction to the instruments in the orchestra precedes this story of Peter and his animal friends’ attempts to capture wily “Old Lupus.” On stage at Glen Echo, through Sept. 30. Recommended for ages 4, up. Tickets are $12.. thepuppetco.org.