A teacher asks her learners to find words and word chunks relating to different themes based on the reading lesson. Learners in groups have to make word charts of the same category. What is this strategy known as?

When learners group words and word chunks based on themes from a reading lesson, this is thematic language teaching. It organises vocabulary and language items around themes or topics, making learning meaningful and contextual. Word collocations refer to words that habitually occur together. Communicative language teaching focuses on real-life communication. A writing project would focus on producing written text. The activity described is fundamentally theme-based vocabulary work.