Table schema:
CREATE TABLE Assessment_Notes (teacher_id VARCHAR); CREATE TABLE Teachers (first_name VARCHAR, teacher_id VARCHAR)

Question: Find the ids and first names of the 3 teachers that have the most number of assessment notes?
SQL: SELECT T1.teacher_id, T2.first_name FROM Assessment_Notes AS T1 JOIN Teachers AS T2 ON T1.teacher_id = T2.teacher_id GROUP BY T1.teacher_id ORDER BY COUNT(*) DESC LIMIT 3