My appreciation about warm up stage

WARM UP STAGE:
Harmer (1987:18) mentions that a good presentation, also known as conscious-raising (p.24), has the following characteristics:
1) Clear. No difficulty in understanding the situation or what the new language means.
In this case, I consider the class, the situation and the desired structure were clearly understood.
2) Efficient. To get to the personalization stage as soon as students can manipulate the new language.
About this, Ss quickly got to the personalization stage and they could manipulate the tense from the beginning even though some of them did not remember the double consonant making gerund in the case of running and swimming.
3) Lively and interesting. Ss get interested and are involved during this stage.
Absolutely, they got interested and involved in that stage. It was not funny but was demonstrative.
4) Appropriate. For the language presented.
It was a good vehicle for the presentation of meaning and use.
5) Productive. For producing sentences in the target language.
It allowed students to make some sentences with the new language.
SOURCES:
Harmer, J., (1987) “Teaching and Learning grammar” Longman