Each ALMOND class is 50 minutes. 1 point = 1 class.
4 types of fees:
(1) Regular class times: Fixed class times and dedicated teachers.
     (general, conversation, business, children) 
(2) Mandarin test course . ( traditional & simplified): fixed class times, fixed dedicated teachers 
(3) Non-fixed time classes and no fixed dedicated teachers:
     Classes are available during all the class hours. 
(4)Discounted Classes: Non-fixed time classes and no fixed dedicated teachers:
     Classes are available only during the discounted class hours. 
(5) Children course: Only fixed class time and dedicated teachers are available.