I think the lesson stages would be in the following order:
Warmer - it is a short activity starting the lesson to involve students in the
'mood' and to engage them with the language: vocabulary games, for example,
"Let's rhyme the words" (dream-cream; not-got; name-game etc),
a brief mingle activity with questions 'Did you have a good time in the
country?' 'Where did you go at the weekend?'
Lead-in - it precedes the main input part of the lesson to help to reinforce
students' interest, set the scene, establish the context. It can be a short
discussion, brainstorming around a topic.
Presentation - Students are given a model illustrating the target
language in context through flashcards, text, video, audio recordings, games
and so on.
Controlled practice - Students practise the target language and focus on grammatical accuracy
and pronunciation. It can be drills, sentence completion, information gap by
teacher's monitoring.
Free practice/production - Students practise the language focusing on fluency.
The activities are role plays, discussions, projects. The teacher's role is to
monitor as learners experiment with the new language.
Feedback - The teacher gives comments on performance and suggestions as to where
students can improve, praises what was done well and may represent useful
examples to reinforce the target language.