请阅读下面短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。
注意：每个空格只填1个单词。
Good class notes are essential to good study skills. If you study bad notes, it's pretty clear what you won't perform very well on tests. But what are good notes? Good notes mainly record the most important facts and enable you to understand how every fact fits into a larger puzzle.
