Consolidation is a lesson stage where new material is reviewed, and hopefully learning is reinforced. It normally occurs at the end of the lesson. Consolidation can be compared with revision, which takes place at a later time and serves to remind learners.

Example
At the end of a lesson on vocabulary of the body a game of 'Simon Says', e.g. 'Simon says touch your nose', is played to consolidate the material seen.

In the classroom
As well as helping learners retain material and reinforcing it, consolidation is an opportunity to clarify and address any doubts. It can also offer a different 'angle' on new language, which is productive for learners with different styles.

Further links:

https://www.teachingenglish.org.uk/article/recycling-vocabulary

https://www.teachingenglish.org.uk/article/simon-shephard-a-box-tricks-warmers-coolers-fillers

https://www.teachingenglish.org.uk/article/vocabulary-recycling-revision-phonemic-symbols-0