JD, UK
I consider collocations one of the most important aspects of foreign language teaching. A focus on them is essential if we want our students to use genuine, idiomatic English or any other language, of course.

Laura, Uruguay
I agree with the fact that collocations should be taught from the very beginning, no matter the learners' age or level. Indeed having a good range of collocations will make their language sound much more natural. If you are dealing with young learners, get them used to repeating chunks of language and not just words in isolation. If you are dealing with more advanced learners, make them aware of the importance of collocations, devise exercises which require them to find collocates in their reading or listening material, ask them to watch British programmes and try to spot collocations. Before asking them to do a writing task, I ask them to brainstorm on the topic, we analyse rubric and so on and then I ask them to think of possible words (nouns, verbs) that they might be using in that written task, and then I ask them to use their collocations dictionary and find interesting collocations to use in their tasks. It really helps!

Charanjit Singh, India
Collocations come with practice. A great deal of practice that includes reading.

Try to get the students very friendly to use of adjectives. At the basic level ask them to add words to adjectives. For example good, ugly and so on. Here you could explain the commonly used phrases. Also tell them about 'limit' and 'scale' adjectives.

You should also get some exercises on making of compound nouns and adjectives. Most of the common collocations are covered there. Pick up the learners work books published by any good publisher. You will find lots of interesting plans for students.

And ensure your students know the "degree adverbs". There are some good books on the "Vocabulary in use". These give out all what a good English speaker needs to know about collocations.