This is a downloadable DXF file.

This file will enable you to cut a 'Marker Rendering Forms' stencil.

When students are learning where to apply markers, it is always best to start with the basic 2D shapes.

Learn to render these before moving on to 3D products.

Simply download the file and cut using a clear sheet of 3mm acrylic.

A single 40% warm/cool grey marker and marker paper is all you need to get started.  Or use copier paper and a pencil crayons to gain the same learning outcome.