Flipgrid.

Flipgrid is a "free at first resource" that allows teachers to pose a challenge to students with detailed, robust online discussion capabilities.

Grids can be classes, sections, groups of students, research groups, faculty groups, or any collection of users interested in a common strand of questions. Each grid can hold an unlimited number of questions, and each question can hold an unlimited number of video responses.

Questions are short, text-based prompts (think Twitter™) that can include basic formatting (e.g., bold, italic) and links to websites or documents.

Review

Pros:

For a free program, it's very detailed and has tons of potential to bring classes closer together in the pursuit of knowledge.

Cons:

Some kids may not have the technology available at home to participate in Flipgrid conversations.

Bottom Line:

It's a simple way for kids and teachers to create online discussion, as long as kids are mature enough to use it wisely. 

Engagement

Seeing and hearing students' video responses can make discourse fun; the site allows personalities and ideas to shine in 90-second clips. Design is colorful, clean, and intuitive.

Pedagogy

Users have 90 seconds to respond to a teacher's question in any way they see fit; that's empowering. They also have to condense answers into that short amount of time, a transferable communication skill for sure.

Support

A two-minute help video guides kids through the process, and the homepage outlines a pretty comprehensive step-by-step process. That said, there's no way to ask questions aside from sending an email.
Conclusion:

I think this resource is really flexible, you can tailor this to suit your class needs really simply. As you may have seen, I used this resource to take a snapshot of information the ICT Department was seeking. Hopefully you used it!

If you would like further information on this resource and how to embed it into your learning environment, don't hesitate to get in touch.

Shaun