I would do market research on how you would position the blog. There are thousands of education blogs and making sure your voice stands out and matches the market is essential.

After positioning, you need to make a list of all the content you can produce: original blog posts, infographics, videos, pictures, lists, news commentary etc. It's essential to begin with your best piece and make sure you keep the rhytm.

Packaging (i.e. layout, headlines, design) is as important as the layout. Visitors need to know they're on a unique blog

Finally marketing. I recommend checking out the upworthy strategy, with a strong foundation on social media marketing (twitter/facebook), and as an aside, also build a good mailing-list for followers.

Let me know if this helps, would be happy to detail.