DRACUT — Uncommon Education for Dracut will host an informational presentation on the common core at 6:30 p.m. Tuesday, Feb. 17, at the Parker Library, 28 Arlington St. The session will feature two specialists: Sandra Stotsky, the architect of the 1993 Massachusetts Education Reform Act who was responsible for its successful implementation, and a former member of the Common Core Validation Committee, and Jamie Gass of the Pioneer Institute.