Infographic by the Department of Education.

MANILA, Philippines - Twitter is used for a lot of things -- online protests, disaster coordination, and even viral marketing campaigns.

But have you ever thought of using the popular microblogging site to tell everybody about your favorite teacher? The Department of Education (DepEd) has.

Check out one of the government's most recent Twitter campaigns: #ThankYouTeacher.

It's a chance for ordinary citizens to tell the whole world (or at least the Twitterverse) why their favorite teacher rocks.

Here's what people on Twitter are saying:

The campaign started out with a simple concept in mind. Students have a habit of passing around notes behind their teachers' backs, so why not turn that around and encourage them to write notes – for their teacher – online?

Kathleen Kho, an assistant program specialist for the DepEd's Basic Education Sector Reform Agenda, told Rappler that the campaign is only the beginning of the department's social media endeavors.

“[There’s a] changed climate in DepEd. You have a lot of reforms happening (K-12, addressing classroom shortages, etc). As a department, we think it's apt to let the public know about the reforms we're doing," she said.

#ThankYouTeacher will come full circle Friday, October 5, on World Teacher’s Day. Volunteer artists will use the tweets and Facebook posts, and turn them into doodles and a time-lapse video for posting on social media, said Kho.

Who's your favorite teacher? Use the hashtag #ThankYouTeacher and be part of the DepEd's campaign.

You can also leave a message on the comments section below. - Rappler.com