Great!  Could you update this list to include the grade of each student?
SELECT T1.firstname ,  T1.lastname,Grade FROM list AS T1 JOIN teachers AS T2 ON T1.classroom   =   T2.classroom WHERE T2.lastname   =   "MOYER"
include the grade of each student refers to selecting Grade; joining tables to include additional information based on a common column (classroom); filtering results based on teacher's last name ('MOYER').