Quizlet: simple learning tool that lets students study/learn with flashcards, games and learning tools.
Plickers: is an poling or formative assessment tool to check student understanding without the need to have students use devices or paper and pencil.
Padlet: is a great tool to communicate information to students’ parents (lessons, themes exploited in class, homework, etc.)
Mentimeter: is a tool that can generate interactive word cloud generator and more.