Fact file is an interesting activity for children. It helps to learn the facts about the things chosen. My son had to prepare fact file about any one of extinct animals in Ice Age.
I personally consider this activity as one of the child's cognitive development activity. They get opportunity to read more resources, collect the information and then precise facts from the gathered information.
A precis is a summary. Precis writing is an exercise in compression. Explaining the whole information in as few words as possible giving all essential facts.
By this practice of writing, children learn quickly and able to speak or write only the important piece of information to be shared rather than an elaborated statements.
We can practise our children with précis writing method while learning and it's an easy way to quickly revise the concepts or understand in a better way.
Happy Parenting !!