vocabulary.
— Make sure there isn’t a big gap between the spoken and grammatic material. You should pay more attention to the involvement of students into talking, but compose the material so that they could practise grammar structures while talking too.
— E.g. Present Perfect is well understood in the context of such a topic as «Travelling» because you can ask questions with «Have you ever been..?» and others about their experience.

Supplementary materials:
— pictures \ online images,
— presentations (online),
— apps and programmes (learning apps, kahoot, bamboozle, wordwall, quizlet) — online and at the computer,
— printed handouts,
— audio \ video,
— cards (not only with images, with roles, tasks…),
— toys, etc.
They are needed for visualisation, games, speaking practice and they help you involve students in the communicative process at the lesson.