need help on this one too :(

# The dictionary will look something like:
# {'Andrew Chalkley': ['jQuery Basics', 'Node.js Basics'],
#  'Kenneth Love': ['Python Basics', 'Python Collections']}
#
# Each key will be a Teacher and the value will be a list of courses.
#
# Your code goes below here.
def num_teachers(dictionary):
    return len(dictionary)

def num_courses(dictionary):
    counter = 0
    for value in dictionary.values():
        counter += len(value)
    return counter
def courses(dictionary):
    library = []
    for items in dictionary.values():
        library.extend(items)
    return library 
def most_courses(teachers):
    max = 0
    teacher = ""
    for key, value in teachers.items():
        if len(value) > max:
            max = len(value)
            teacher = key
    return teacher

def stats(dictionary):
    for key, in dictionary:
        new =  key, len(value)
    return list(new)