Here is an article by Michael Brand from Pearson.
Teaching beginners can be a daunting prospect, especially when it’s a monolingual group and you know nothing of their language, or it’s a multilingual group and the only common language is the English you’ve been tasked with teaching them. Nevertheless, not only is it possible to teach beginners only through English, but it can also be one of the most rewarding levels to teach. To help you succeed in setting your learners firmly on the path to increasing proficiency, here are seven tips for teaching English to beginners.
1. Keep instructions clear and simple
It can be tempting when addressing a class of students, especially ones that you’ve only just met, to explain activities in your politest language. After all, no one likes to be rude. However, a student who has only a few words of English, if any at all, won’t appreciate the courtesy of (or even understand), “OK, so now what I’d like you all to do, if you don’t mind, is just to stand up for a moment and come to the front of the class. Oh, and please bring your book with you. Could we all just do that?”