NJSLA Test Prep Instructor- Language Arts. Middle School & High School NJSLA Test Prep Instructor- Language Arts, NJSLA-LA 6th grade, NJSLA-LA 7th grade, NJSLA-LA 8th grade, NJSLA-LA 9th grade, NJSLA-LA 10th grade, NJSLA-LA 11th grade. Classroom work must be prepared for students and the TA must ...