I'm new to the forum and need some help with the course I was asked to conduct.
The course is aimed at professionals at B2/C1 levels of proficiency- business conversations.
Although I've taught a lot of standard BE courses to adults, I feel lost with the character of the course.
The strange thing (as for me) is that each and every lesson should be taught with almost no materials- the atmosphere during the classes should be really "relaxed", and, at the same time, I'm expected to teach them a lot of vocabulary or grammatical structures.
I fell really confused- how to teach people and make it interesting and involving without materials?!?

I cant imagine teaching all these without the proper input in a written form :/
Maybe those of you who have more experience in theaching BE to adults could give me some suggestions? I'd be really grateful:)