Understand Chronology The children recount changes that have occurred in their own lives. They experience placing events and artefacts in order on a time line, as well as labelling the timelines with words, phrases and dates. Communicate Historically The children use words and phrases to describe the passing of time. They show an understanding of Singapore as a nation and the history of the country. Concepts such as civilization, monarchy, parliament, democracy, war and peace are explored.