Web 2.0
Google tools
100
Gamified student engagement platform that offers multiple features to make a classroom fun.
Quizizz
100
A free web-based platform that integrates your G Suite for Education account with all your G Suite services, including Google Docs, Gmail, and Google Calendar.
Google Classroom
200
Interactive presentation tool that helps to engage students in a classroom.
Mentimeter 
200
It is free online software that allows you to create surveys, quizzes.
Google forms
300
The free website which lets teachers create a wide variety of different educational interactive resources.
Educaplay
300
Online presentation app that lets you create and format presentations and work with other people.
Google Slides