Senior high school learners taking up practical research I and II subjects are expected to produce research write up. However, based on the experience of the lead researcher as a practical research teacher they could not make it. The written essay of the learners showed their difficulty in content development, paragraph structure and word choice. continue reading : Use of Inquiry-Based Writing Instruction (IBWI) to Improve the Academic Writing Skills of Senior High School Students Taking Up Practical Research 1