Write a function named courses that takes the dictionary of teachers.

# The dictionary will be something like:
# {'Jason Seifer': ['Ruby Foundations', 'Ruby on Rails Forms', 'Technology Foundations'],
#  'Kenneth Love': ['Python Basics', 'Python Collections']}
#
# Often, it's a good idea to hold onto a max_count variable.
# Update it when you find a teacher with more classes than
# the current count. Better hold onto the teacher name somewhere
# too!
#
# Your code goes below here.

def most_classes(teachers_dict):
  max_count = 0
  busiest_teacher = ''
  for teacher, classes in teachers_dict.items():
    if len(classes) > max_count:
      max_count = len(classes)
      busiest_teacher = teacher
  return busiest_teacher

def num_teachers(teachers_dict):
  teacher_count = 0
  for teacher in teachers_dict:
    teacher_count += 1
  return teacher_count

def stats(teachers_dict):
  newList = []
  for teacher in teachers_dict:
    newList.append([teacher,len(teachers_dict[teacher])])
  return newList

def courses(teachers_dict):
  courseList = []
  for classes in teachers_dict.values():
    courseList.extend([classes])
  return courseList