This happens if you preview or start to print without expanding the subdocuments first. Then right-click and pick Update Field to update the table of contents. To print the entire guide at once, simply open the Master Document and print it as you would any Word document. The guide will print with blank pages automatically inserted where needed for double-sided printing. To print a range of pages in the Master Document, specify the page number and section number.
Word shows the section number next to the page number at the bottom of the screen.
The Instructor Notes come in the same ZIP file as the Student Guide. However, they are a separate document, not linked to the Student Guide.