This is the 1995th most frequent French word.
écrite
Written.
'Écrite' is used as a past participle describing the note as having been written by the teacher.
La note écrite par le professeur est claire.
The note written by the teacher is clear.
Here, 'écrite' qualifies 'consigne,' indicating the instruction is communicated in written form.
Une consigne écrite permet une meilleure compréhension.
A written instruction allows better understanding.
'Écrits' functions as an adjective modifying 'messages,' specifying the form of the communication as written.