Twitter is an online social networking service that enables users to send and read short 140-character messages called "tweets".

2 educators love this tool.
Twitter is the favorite tool of Àngels Soriano (Spain)

I love this tool because is the best way to engange students because it is the best way to engage students in activities that offer them. Using twitter in the classroom you can make a lot of activities: take notes, share Reviews posted on a particular topic, evaluate the reading process, review a talk at the center, add your images words, hold commemorative days like writing fragments of verses in the tweets made; and why not share activities with other schools in other cities; there are many activities you can do, you just have to propose the activity to your students; and break the walls of your classroom to transform it into a global classroom.
Your students can use a more educational than the personal profile, and there are many tools to track their tweets. I encourage you to offer your students the opportunity to expand their Personal Learning Network.

Educational value:
Collaboration, Knowledge building & critical thinking, Student self-assessment, Communication
I use this tool to/for:
Creating, Sharing, Flipping the classroom
Twitter is the favorite tool of Darina Poljak (Serbia)

Twitter is a tool that I present my students in 7th and 8th class at our Informatics and Computer science lessons. Some of them  introduce this tool for the first time, other have already got an account...

Educational value:
ICT for learning, Knowledge building & critical thinking, Student self-assessment
I use this tool to/for:
Searching, Sharing, Distance learning