Teacher shows students the dangers of posting photos on the internet

One fifth-grade teacher used herself as a guinea pig to demonstrate to her students just how dangerous it can be to post a photo of yourself online.

According to thestir.cafemom.com, the results of her campaign were both extraordinary and even a little frightening.

Within 24 hours her photo was 'liked' by almost 7,000 people on Facebook and shared more than 400 times.

Then it made its way onto Reddit. And that's when things started to get really interesting.

Folks on Reddit decided it would be a great idea to pitch in and help this teacher by manipulating her photo.

Their edited photos show kids just how simple it is to take an image they innocently post online and change it completely.

This is the original message on the teacher's photo:

'I'm talking to my 5th grade students about internet safety and how quickly a photo can be seen by lots of people. If you are reading this, please click 'Like.' Thanks!