wpmudev is one of the top sites for all things WordPress, so if you want a detailed, specific comparison of the two platforms, this article will give you all the information you probably need. If you're technical, or maybe just curious, there are tons of learning resources on the technical aspects of WordPress on the site.
If you're wondering how WordPress could be used in a school, this brief presentation will give you some ideas (school site, blended learning, resource repository). Actually, it can also be used for online courses.
If you've decided that all you need is a blogging platform, rather than a self-hosted WordPress.org site, this article from veteran teacher Linda Yollis explains how student blogging helps their literacy skills and includes parents in the learning. It was written in 2012, so blogging has evolved, but I included it in this collection because it is focused on learning benefits, rather than the technology itself.
If you've decided to dive straight into the deep end with a self-hosted WordPress site, this list of plugins (only available for .org, the self-hosted version) might help you find an e-learning solution if you ever want to create an online course for your students.
This is one of the most trusted and authoritative sites for tutorials for WordPress beginners. Now, be aware that "beginner" is a relative term. Not all the content is aimed at absolute beginners. In fact, I'd say it's also relevant for advanced beginners and intermediate WordPress users. I've built many self-hosted WordPress sites, and I assure you that wpbeginner.com is one of the best tutorial sites around.