SELECT count(*) FROM list AS T1 JOIN teachers AS T2 ON T1.classroom  =  T2.classroom WHERE T1.firstname  =  "CHRISSY" AND T1.lastname  =  "NABOZNY"
Find the number of teachers who teach the student called CHRISSY NABOZNY.
[Schema (values) (types)]: | student_1 |  list : lastname (text) , firstname (text) , grade (text) , classroom (number) | teachers : lastname (text) , firstname (text) , classroom (text);