A Joint-School Staff Development Day was held on 20 October 2023. All our teaching staff together with those from Kwok Tak Seng Catholic Secondary School and Immaculate Heart Of Mary College were deeply inspired by the talk "How to be a Scientist" delivered by Professor Tsui Lap Chee. Meanwhile, the teaching staff from three schools also enjoyed the fruitful interflow sharing session on their specialised areas on the same day.