Unit1.5 Mathematics Helps Control Nature and the Occurrences in the World F - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. Math college Signposts are words and phrases that you can use in your text in order to guide the reader along. Signposting can be divided into two different categories: major signposting and linking words and phrases. STRUCTURE OF ACADEMIC TEXTS • Structure is an important feature of academic writing.