SIDEBAR: Deadline nears Tuesday is the deadline for those seeking to open new charter schools to submit final proposals. The state Board of Education will award new charters in February. Here are the 12 finalists: Conte Community Charter School, Pittsfield Elijah McCoy Preparatory Charter School, Springfield Four Rivers Charter School, Greenfield Greenriver Regional Charter School, Great Barrington JAS Academy Charter School, Cambridge Leonardo [da Vinci] Public Academy of Science and Art, East Boston Mohonk Charter School, Boston Roxbury Charter High School for Business, Finance and Entrepreneurship Smith Academy for Leadership, Boston South End College Preparatory Charter School, Boston Uphams Corner Charter School of Dorchester Urban Academy of Central Massachusetts, Worcester Source: State Department of Education