Consulting reference resources to help in lesson preparation

Reference resources are all the sources of information about language and about teaching that we can refer to for help in lesson preparation.

Reference materials:
Dictionaries
Grammar books
Books
Articles in teacher's magazines

Supplementary materials in a course book:
Phonemic charts
Lists of irregular verbs
Websites

As teachers, I mean, as professional ones, we should:
* Check the form and use of grammatical structures.
* Check the spelling, pronunciation and use of lexical items. 
* Develop our understanding of language.
* Anticipate learners' difficulties.
* Look for new approaches to teaching lessons and new classroom activities.
* Find out how to use the material in our coursebook.