Shàngkè de shíhou bú yào chídào, lǎoshī huì diǎnmíng.
Don't be late to class; the teacher will take attendance.
Tips
culture
In Chinese schools and universities, 点名 (roll call) is taken very seriously. Missing roll call too many times can affect your grade, so students sometimes ask classmates to answer for them — called 代答到 (dàidádào).
usage
被点名 (to be called out by name) often has a negative connotation — being singled out for criticism.