Presemo - polling system
You can use the Presemo polling system in Aalto. Just create a new poll and you get short instructions by mail. Other instructions can be found in http://opit.aalto.fi => Presemo .
Today, in the contact session, we used the poll http://presemo.aalto.fi/scita/ which used a voting option. Presemo is totally anonymous tool. Below, you can see the results ("Screen") from the voting questions, what's your best advice for a TA.