Recently, my teaching schedule has
picked up a bit, and I have started 3 new courses. One of the courses
is with an English school that provides a curriculum and materials,
and one is a private tutoring gig, but the other course is, for the
most part, completely open as far as content goes. Currently, I am facing the challenge of
creating a course plan that will satisfy everyone: the participants
(adult, business people), their company (that is sponsoring the
course), and my company (that claims to have a creative, unique
approach to English instruction).

However, in my current situation, faced
with the simultaneous needs to teach concrete skills in English, to
teach English grammar (without taking a traditional grammar teaching
approach) AND to foster a discussion-like environment in the course,
Nunan's task based language teaching model seems to be a perfect
solution.
In the model, each unit is based around
a pedagogical task – a real world activity performed in the safety
of the classroom. Building up to that task, the teacher scaffolds
activities and lessons that will develop the skills needed for the
students to successfully complete the task.
Here is the outline of the unit model:
Step 1: Schema Building
Step 2: Controlled Practice
Step 3: Authentic listening practice
Step 4: Focus on linguistic elements
Step 5: Provide freer practice
Step 6: Introduce the pedagogical task
Obviously, there is a lot more to this
book that just the model outline, but I can't do it justice in a blog
post. I recommend looking into the book if you are teaching business
English without a pre-set curriculum, because it allows you to focus
on the specific language tasks (sending email, having a meeting,
interviewing, etc.) that they will encounter.
If you want to see the Table of
Contents and a little of this first chapter, here is a link. Also, I found this blog that focuses on Task Based Language Teaching. It has
not been updated recently, but the posts that are there already have some good ideas.