It is important to note that there are no hard and fast rules as to what you will find in each level, but I have provided this guide to give teachers an approximate idea of the level classifications on esl lounge. It is important to remember that will obviously be some overlapping between the levels. Just because past simple is listed under Elementary, there will still be materials pertaining to the past simple under higher levels, but usually not lower.

Clearly, every area of the language can be taught or tested asking more or less of the students you are teaching. There can be some basic "jumping through hoops" grammar worksheets or some other materials which test the same grammatical point but require much more learner input from the students. For this reason, you shouldn't rely too much on the information given below.

Also remember that each level will have its own resources for vocabulary and conversation, etc.

level 1a beginners

includes absolute zero beginners
verb 'to be'
present simple affirmative
present simple interrogative
present simple negative
there is, there are
possessive 's'

level 1b elementary

can
past of verb 'to be'
past simple affirmative
past simple interrogative
past simple negative
present continuous all forms
going to and present continuous for future
comparatives and superlatives
some, any

level 2 pre-intermediate

past continuous all forms
present perfect simple all forms and uses
for, since, ago
articles
quantifiers
first conditional
should, may, might
will and going to futures
must and have to, don't have to

level 3 intermediate

present perfect continuous
second conditional
passive in present and past
past perfect
make, let, allow
used to, be used to
modals
phrasal verbs

level 4 upper intermediate

third conditional
wishes, regrets
phrasal verbs
passive
future perfect and continuous
reported speech

level 5 advanced

At this level, students take exams such as First Certificate, CAE and TOEFL. The amount of new grammar at this level is minimal. There are materials included for:

phrasal verbs
causative
sentence transformation
complex modal verb use

level 6 plus proficiency

This is the level at which the very highest level exams such as Advanced or Proficiency are taken.

There is very little or nothing in the way of new grammar but the materials found here are suitable for those at the highest point in their English studies.