Lucidpress comes from the same developers and has a broader appeal for teachers and students. (Click here for the Marketplace version and click here for the general version).
Lucidpress is a slick tool for collaboratively creating multimedia documents. If you watch the video below you'll notice that Lucidpress has some similarities to Google Documents. In fact, you can use your Google Account to sign into Lucidpress and you can use items stored in your Google Drive account in your Lucidpress documents. Lucidpress has commenting and sharing features that are similar to Google Drive too. What makes Lucidpress different from Google Documents is the selection of layouts and the layout customizations available to you. I look at Lucidpress as being the best of Apple's Pages and the best of Google Documents combined into one slick service.
Applications for Education
Lucidpress, just like Lucidcharts, is free for teachers and students (scroll to the bottom of the pricing page for information about access as an educator). Lucidpress could be an excellent tool for students to create multimedia documents as reports or to tell a creative story. It is possible that your students could use it to create a multimedia online yearbook too.