Click the small yellow arrow in the red square to remove the options from the graph paper.
This visual aid is part of the Shine+Write collection. It can be used on an interactive whiteboard but also projected on to a more traditional whiteboard on which the teacher or student can 'write'. Hence the name Shine+Write!
To print out the triangular paper you will first need to go to Page Setup and enable the printing of background colors and images then empty the header and footer fields.
Don't forget to make most of the options on the projector remote control too. Most projectors will allow you to 'zoom in' so that you can ensure the picture on the screen best serves your needs.