I'm not confident about the stroke order of the kanji, so I am embarrassed to write on the board in front of people.
"I'm not confident about"＝「私は～について自信がありません」
"the stroke order of the kanji"＝「漢字の書き順」
"so I am embarrassed to write on the board"＝「なので私は板書するのが恥ずかしいです」
"in front of people"＝「人前で」
Sentence in context:
"I really would rather refrain from having to write kanji on the board in front my colleagues, because I am not confident about the stroke order of the Chinese characters."
アメリカ合衆国 
