A teacher has shared a hidden code school staff use on children's homework, among other abbreviations that have a range of meanings.
TikTok user @missfrankie1 said that sometimes she and other teachers will write "EBI" on homework, and it turns out there's a hidden meaning behind the letters. She explained the codes are used to help teachers communicate with each other, as reported in the Mirror.
There are many codes, from KCSIE to WWW, and here is what they all mean.