ClassPoint is an interactive PowerPoint add-in that allows educators to turn their slides into various types of quizzes to engage students. It has different question formats like multiple choice, word clouds, short answer, slide drawing, and image uploads. Educators can design questions on slides, add question buttons, and then students can submit answers live during the presentation or after class directly in PowerPoint. The responses can be viewed live or reviewed later. It aims to help teachers teach interactively and build engagement with their students.