https://learninglab.etwinning.net/35081/pages/page/201256

https://support.chatroll.com/

You will use Chatroll to give your opinion.See how it works here: tool  

It´s a powerful live event chat to engage your audience in real-time.

Thinks in the dynamic cooperative with which will work in class and is of identify some of the rules that should develop them students so the thing work. Select behaviors that seem most important to you and turn them into standards and show it and share.

Below is another tool where you will add an idea or an image to illustrate your way of thinking abou the subject 

                             https://www.dotstorming.com/topic/58a643d9b5cb709052e73c72