Canva offers an education version that provides all of the pro features for free to teachers and students, there is a ton of neat things that students and teachers can make. One example of that is designing and publishing multimedia collages. Along with pictures, text, and hyperlinks you can add video and audio files to any of the designs that you make or modify in Canva. Obviously, the video and audio will only play if you publish your design online. Fortunately, Canva offers a couple ways to publish your collages online. Those options are to publish the collage as a simple stand-alone webpage or embed it into an existing webpage.
In the following video I demonstrate how to create and publish multimedia collages in Canva.
Applications for Education
Making a multimedia collage in Canva could be a good way for students to assemble simple one page digital portfolios to showcase examples of their work.I can also see making multimedia collages in Canva as a fun way for students to organize a collection of digital artifacts to summarize key points in a time period or in a person's life.