LaTeX is an amazing tool for publishing technical documents, particularly those which are rich in mathematical content. Teachers, whether in K-12 level, univ. level, or higer levels, need such a tool for all their work. This includes, class notes, assignments, tutorials, question papers, research papers, popular articles etc.
To make it easy for you to appreciate this wonderful tool, I have uploaded a file containing two introductory papers of mine. Just take a look, and let me know if you need help. The file can be downloaded