The document discusses a study on the effects of form-focused instruction (FFI) on ESOL learners' accuracy in written production. There were two types of FFI studied: implicit FFI which incidentally draws attention to forms, and explicit FFI which directly teaches grammar rules. Two teacher participants delivered lessons using either implicit or explicit FFI to experimental groups. Accuracy in writing was measured before, right after, and 3 months post-instruction using controlled and free writing tasks. Questionnaires and interviews with teachers found that most supported explicit FFI and formal instruction to help improve accuracy, though acknowledged learners benefit differently. The study found some short-term benefits to accuracy from FFI but not sustained long-term effects. Overall, the document examines the impact