The most different between America and Taiwan about Foreign Language Leaning is 5Cs standards.
I've been an English and Chinese teacher for 3 years and I thought I was a quite good teacher no matter in class or out class.
Moreover, most TCFL students know things about 5Cs.
However, we never attempt to treat 5Cs as a serious thing.
After writing the lesson plan and reflections of each practice teaching, gradually I could know what 5Cs are and integrate 5Cs in my teaching.
It's a tough work for me, but I made it and I believe I can do it well!

NATIONAL STANDARDS FOR 
FOREIGN LANGUAGE EDUCATION

STANDARDS FOR FOREIGN LANGUAGE LEARNING COMMUNICATION
Communicate in Languages Other Than English

• Standard 1.1: Students engage in conversations, provide and obtain information, express feelings and emotions, and exchange opinions
• Standard 1.2: Students understand and interpret written and spoken language on a variety of topics
• Standard 1.3: Students present information, concepts, and ideas to an audience of listeners or readers on a variety of topics.

CULTURES
Gain Knowledge and Understanding of Other Cultures

• Standard 2.1: Students demonstrate an understanding of the relationship between the practices and perspectives of the culture studied
• Standard 2.2: Students demonstrate an understanding of the relationship between the products and perspectives of the culture studied

CONNECTIONS
Connect with Other Disciplines and Acquire Information

• Standard 3.1: Students reinforce and further their knowledge of other disciplines through the foreign language
• Standard 3.2: Students acquire information and recognize the distinctive viewpoints that are only available through the foreign language and its cultures

COMPARISONS
Develop Insight into the Nature of Language and Culture

• Standard 4.1: Students demonstrate understanding of the nature of language through comparisons of the language studied and their own
• Standard 4.2: Students demonstrate understanding of the concept of culture through comparisons of the cultures studied and their own.

COMMUNITIES
Participate in Multilingual Communities at Home & Around the World

• Standard 5.1: Students use the language both within and beyond the school setting
• Standard 5.2: Students show evidence of becoming life-long learners by using the language for personal enjoyment and enrichment.