NYOS Charter School. School Teacher Job Description. Job Title: 7th Grade Math Teacher, Middle School. Reports to: Secondary Principal. Service days: 190. . About NYOS. At NYOS Charter School, we educate the whole student. We foster a collegial Pre-K 12 program that challenges each learner with rigorous academics, innovative strategies, and expectations for civic engagement. . Primary Role. This position is for. a 7th Grade Math Teacher. . Qualif...