Prior knowledge is recalling any information you already know on the topic you are reading about. It can be used before you read, while you read, and sometimes even after you finish reading a book.
The objective of this task was to recall our prior knowledge about the lali drum, then provide a researched fact about it. (Including the source and audio of the drum).
The second task was to use our prior knowledge on another drum of our choice (the drum wasn't allowed to be a pacific islander drum). We needed to provide our prior knowledge information about it, researched fact, source and audio.
LI: to demonstrate our prior knowledge on a topic.