A teaching tool consisting of T-shirt style garments lettered with salient high value didactic content presented in three coordinating mutually enhancing special dispositions (mirror image, inverted, and standard grammar) for low cost, low technology, universally available, formal and informal, school and home, group and individual use. It enhances knowledge acquisition by creating and potentiating novelty, curiosity, surprise and amusement qualities. This tool is suited well for vocabulary, definitions, tables, formulas and number manipulations and is suited to biographic sketches, historical gems and general curricular data for all ages.