
Re: I am a TEFL teacher. Can you suggest some good sites which offer great lesson plans?
Definitely join the Oxford Teacher's Club. It doesn't offer minute-by-minute lesson plans, but there are thousands of GOOD, HIGH-QUALITY downloadable activities for kids, teens, adults and business students. Most of the worksheets are in PDF format with great graphics and fonts- they look very professional. Membership is free. I find the activities for English KnowHow, Clockwise and ProFile especially helpful. See the first link.
On the Longman website, you can download the entire Fun with Grammar book (legal and free download). The book is full of great activities, with the necessary worksheets attached in PDF format (also very professional-looking). The book is sorted by topics like Future Verbs, Conditionals and Modals. You have to join. See second link.