Lesson 4 of the series "Problems in Teaching" from Master Weaver, on drafting treadling for symmetrical patterns from a single threading draft. It explains the basic treadling draft, which produces a diagonal, and how to derive a second variation ("rose-fashion") by swapping treadle numbers or mirroring the treadling marks about a center line. It gives numerical treadling sequences, notes common student errors, and includes three figures with 4-shaft, 4-treadle drafts and treadling diagrams.