A blog list is just a static list of URLs. Feel free to subscribe to them within WordPress (but note that WordPress only follows other WordPress blogs) or use your own blog/RSS reader tool, such as Feedly, to subscribe to the ones you want as well as other professional blogs by practicing teachers, principals, researchers, associations, etc. on any blog platform that they may use that has an RSS feed.
To get to the RSS feed of a blog or of a category, simply type “/feed” at the end of the blog or category URL. It should look like just a bunch of text, which is perfect food for these software tools to consume! Fortunately, tools like Feedly and WordPress will often do the work of finding the feed address for you. You simply need to past the URL you want to follow.