Daley, 23, said: “For the first few years at school, I had the best time, but when I qualified for the Olympics things took a bit of a turn.
“I came back from Beijing [Olympics in 2008] and everything changed. They took the mick out of what I was wearing on the diving board; they would throw stuff at me at lunchtime.”
The bullying became so bad that diving - the talent that has made Daley into a role model for so many pupils - became a burden.
Black added: “Imagine if you could tell yourself as a kid, ‘That thing you’re being bullied for might get you an Academy Award or an Olympic medal one day.’”
With each picture, a piece of advice for victims of bullying was given, resulting in a lovely bubble of support found with the #Back2Schools hashtag.
7th grade I was made fun of because I was a girl who dressed like a boy, fat, and had bad teeth. I found my tribe, you will 2. #Back2Schoolpic.twitter.com/MoXn0KCICg
I want to give the 6 year old me a big smooch! I’m trying my best...looks like I cut my own bangs for back-to-school pix day! #Back2Schoolpic.twitter.com/dbUvuLlm6O