I remember reading something a long time ago about Chinese classes that foreign spouses of Taiwan nationals can go to in order to improve their Chinese. After googling I found this article, but it is old:
Here’s my poor attempt (my first time translating from written Chinese into English):
Taipei City Public National Elementary School Affiliated Tutoring School
There are no perquisite qualifications for enrolling into the elementary school, for enrolling into the junior or high school/professional advanced studies, there are age/degree level requirements for which you need proof.
Elementary tutoring school: (1) No restrictions on where you reside, completely free of tuition fees. (2) Follows a semester system where you take 22 weeks of classes per semester. (3) After studying for three years and passing an examination, you will be awarded with a diploma issued by National Elementary School.
There is a total of 16 of these elementary tutoring schools in Taipei City. The administrative district where each school is located, name, address, telephone number etc are detailed in this attachment. (where?)
Tutoring and advanced study pedagogy: http://edu.law.moe.gov.tw/LawContent.aspx?id=FL009111