School and classroom

12345678910111213141516171819
Across
  1. 6. bike in German
  2. 8. pencil case in German
  3. 9. the verb "learn" in German
  4. 10. window in German
  5. 12. door in German
  6. 14. book in German
  7. 17. pencil in German
  8. 18. male form of teacher in German
  9. 19. male form of student in German
Down
  1. 1. paper in German
  2. 2. principal in German
  3. 3. my (your teacher's :-)) surname
  4. 4. rubber in German
  5. 5. board in German
  6. 7. pen in German
  7. 11. clock in German
  8. 13. ruler in German
  9. 15. table in German
  10. 16. chair in German
  11. 17. floor in German