This Thesaurus task really helps students to learn new and exciting vocabulary, instead of constantly relying on over used words:
* I enlarge the poster to A3 and laminate it.
* I use a whiteboard marker to write a new word in the space every week.
* Students write the synonyms for the chosen word - on Post-its and place on/ around poster.
I find they will then use these synonyms in their writing, which enhances the quality of their work. Their alphabetical/ reference skills also develop quickly as they become more competent at completing this task.