Nearpod
Nearpod allows you to upload PowerPoint presentations, Google Slides or PDFs and present them on your students' devices (computers, laptops, tablets or smart phones). Nearpod allows you to add several interactive activities such as quizzes, drawing, brainstorm boards, websites and games right into your presentation so that students (and you) don't have to leave the presentation to participate in mobile quizzing or surveys. Each time you present, Nearpod generates a unique code which allows students to join your presentation without having to sign in. You can also see when students navigate out of the presentation in real-time.