Some Minneapolis school district residents say they think the school board should resign for failing to improve student test scores. African American parents and community leaders today criticized board members and district administrators for the recent poor performance in statewide tests, especially among minority students. Minnesota Public radio's Tim Pugmire reports... The Minneapolis school board was scheduled to discuss plans for improving student achievement in the coming school year. But members of the African American community came to get answer about this year. Results of this year's basic skills tests in Minneapolis show about one third of all studen