For academic and scientific educational content, you can use their OAI-PMH interface to download metadata and abstracts for over 100k papers.
If you tell me this, I can point you to the exact dataset link. Download 100k Education txt
What is the specific (e.g., K-12, academic research, programming)? For academic and scientific educational content, you can
Here are the best methods to handle a request of this scale: For academic and scientific educational content
For educational literature, you can bulk download their entire catalog, which contains over 70,000 free books, using their mirrors or automated scripts. Recommended Approach
A great source for structured, large-scale datasets. You can search for educational text, and use the Kaggle API to automate the download of up to 100k records.