Hi

The present perfect is one of the most important tenses in English as we use it all the time. However. it can take students a while to master it as certain aspects of it can be hard to grasp. Even though other languages often have a similar structure it is not always used the same way, and this can add to the confusion.

In English we use to present perfect in different ways so you need to choose what aspect you are going to teach first, as obviously it doesn't make any sense to do them all at the same time or even one after each other. It is probably best to teach one aspect, wait, revise it and then introduce another aspect. It may be useful to introduce students to the idea of the past participles first.

From my experience, I think most students only begin to understand it when it is used in comparison with the past simple as then it can be easier to explain, or at least give examples with different time expressions etc.

The topic of holidays, countries is common when used with "Have you ever been to..." and students can interview each other. The can also devise a questionnaire with "Have you ever won a prize? " (and other similar questions - this can be useful as it can also help with follow up questions in the past simple i.e. "Have you ever stayed up all night?" "Yes I have" - then you can use a past simple question to ask "when", "why" etc.

Students always get the past simple and past participle verbs mixed up too and, as it is an important tense, make sure they get enough grammatical exercise practice in the class and for homework.