1. The first document is a word document with isometric paper. The grid in word has been adjusted in such a way as to allow lines and shapes to be snapped to the corners of the isometric paper. So you can effectively draw isometrically accurately in word. 2. The first page of the second document describes a tessellation problem and the second page shows the solution. 3. The first page of the third document describes another tesselation problem and the second page shows the solution.