This is perfect for teachers for they can use it to create learning activities to share with their students either in the classroom or as homework assignments. Filamentality is very easy to use and have a user freindly interface. It does not require any download or software installation.
To start using Filamentality you need to click on " Start a new Page" then provide a name for your topic, select a user name and password and enter you email addresse and you click on ' spin this page' and there you go. to start a new page you will need a new password but the username you can use it over and over.
Go ahead to Filamentality and give it a try I am sure you will like it.