Williamsville Central School District starts to offer INTRODUCTION TO MANDARIN CHINESE (Course Number 5613) in all its three high schools from September 2019.  Here is the description on the course catalogs of the three high schools:   INTRODUCTION TO MANDARIN CHINESE GRADE: 9, 10, 11, 12 CREDIT: 1.0 LENGTH: 40 Weeks CODE #: 5613 OFFERED…