Abstract
The author has conducted “Teaching Mathematics in English” in a course of Advanced Applied Mathematics (optional credit) at the Advanced Engineering Program, remedial lectures in English (for students under 3rd year) and an open lecture on 3D geometry (for students under junior high school). Since they are not compulsory course, students agree with the methodology: teaching in English. They, however, need facilitating English because the students are not familiar with using English.
https://ror.org/01ta2g450 
