Vocabulary learning is a crucial factor in second language acquisition (SLA), yet there is no consensus as to how to present vocabulary in a way that facilitates learning. Little theory and scant empirical evidence support the claim that presenting words in semantic clusters facilitates vocabulary acquisition, yet most text books present SL…

To investigate the effects of semantic mapping, thematic clustering, and notebook keeping on L2 vocabulary recognition and production, four groups of intermediate level learners in an EFL institute in Zanjan, Iran participated in the study. Three experimental groups consisted of semantic mapping, semantic feature analysis, and vocabulary notebook…

Explores the effects upon the academic progress of English-as-a-Second-Language students' learning of vocabulary of semantic and thematic clustering. Results present a wide range of evidence suggesting that semantic clustering does serve as a hindrance while thematic clustering facilitates L2 vocabulary development. (21 references) (Author/CK)