Buncee

Buncee is a creation and presentation tool for students and educators that enables them to easily bring together all kinds of content (buncee artwork, photos, videos, drawings, audio, and links) onto one digital canvas, making a cloud-based, shareable creation. It allows learners to visualize concepts and communicate creatively. It also provides a catalog of stock images and animations that they can add to their slides. 

https://www.edu.buncee.com/

Tutorial: https://www.youtube.com/watch?v=vlFrgfiSW0o