What are the names of the teachers and how many courses do they teach?
SELECT T2.Name ,  COUNT(*) FROM course_arrange AS T1 JOIN teacher AS T2 ON T1.Teacher_ID  =  T2.Teacher_ID GROUP BY T2.Name
SELECT T2.Name ,  COUNT(*) FROM course_arrange AS T1 JOIN teacher AS T2 ON T1.Teacher_ID  =  T2.Teacher_ID GROUP BY T2.Name
[{'Name': 'Anne Walker', 'COUNT(*)': 2}, {'Name': 'Gustaaf Deloor', 'COUNT(*)': 1}, {'Name': 'Kearsley Brown', 'COUNT(*)': 1}, {'Name': 'Lucy Wong', 'COUNT(*)': 1}, {'Name': 'Vicente Carretero', 'COUNT(*)': 1}]