The objective of this study was to confirm the existence of knowledge relating to the cursive writing movement for French pupils in 3rd year of kindergarten, 2nd grade and 5th grade of elementary school. 141 pupils were asked to watch a visual presentation of cursive handwriting to determine whether they were able to detect violations of two rules of handwriting: continuity and sequentiality of the cursive handwriting movement. Our results showed progressive development of the understanding of characteristics of the cursive handwriting movement, with different developmental trajectories of knowledge for the different rules. The ability to detect continuity of the cursive writing movement developed earlier than the ability to detect sequentiality. Correct decisions were not always accompanied by correct justifications, which developed more slowly than detection of rule violations.