Stream-Aware Vocabulary Demands in Singapore Secondary Tamil Textbooks: A Morphology- and Multiword-Unit-Sensitive Corpus Analysis, with a Textbook-Faithful GenAI Item Benchmark
Vocabulary learning research increasingly calls for curriculum-aligned evidence and methods that reflect how vocabulary is selected, sequenced, and assessed in real educational systems. However, stream-differentiated curricular pathways may entail distinct lexical demands that are rarely quantified for morphologically...