Xunmeng pianju 訓蒙駢句 "Paired sentences of educational instruction" is a short text for primary education written by the Ming-period 明 (1368-1644) scholar Si Shouqian 司守謙, courtesy name Yifu 益甫. He hailed from Xuanhua 宣化 and was famous for his poetic style, but he died at a very young age. The Xunmeng pianju is the only suriving text of his writings.
It is written in rhymed couplets, a literary style called si-liu 四六 during the Tang period 唐 (618-907) - because the verses had lengths of four or six syllables -, but known as pianti 駢體 in later ages. Si Shouqian's text begins with three-syllable verses and adds a syllable for each paragraph, so that the sentences are very long in the end.
The Xunmeng pianyu with its educational content was therefore easy to memorize, and was for some time a quite widespread text, along with the Shenglü qimeng 聲律啓蒙 and Liweng duiyun 笠翁對韻.