The triangle is a foundation shape in loom knitting. Combining 

triangles allows loom knitters to create large
amounts of fabric on a relatively small number of pegs. This overcomes one of the major challenges a loom knitter faces. Here, you will
find basic formulas for making three different
kinds of triangles, with endless possible
variations. Combining these will give you even more possibilities for shaping your loom knitting. The formulas will work on any size and gauge
loom with the appropriate weight yarn for the
type of fabric you want to make. In addition to the three pattern formulas, this pattern includes 2 pages of diagrams, and a pattern for a little
kerchief.

This pattern is part of a larger .pdf ebook, that includes a 24 point large print text file (78 pages), a 12 point paper-saver file (24 pages), cover, 7 pages of photos, and two pages of diagrams.

My patterns are low vision and screen reader accessible. The text is black, Arial and large print 24 point font. All of the directions are fully written out and no charts are relied on to complete the patterns. No italics are used. They are screen reader and tablet friendly.

A full preview of the may be seen at Invisible Loom: http://invisibleloomcraft.blogspot.com/