The Trimetric Classic served as a child’s first formal education and the text is written in three-characters verses for easy memorisation. From this text, children learn common characters, grammar structures, as well as Chinese history and Confucian values such as filial piety.This particular book has explanations in vernacular Chinese and interestingly advertised its use of movable typesets(活版) for printing instead of the usual woodblock print on its front cover.