How to build trust and reach early adopters in edtech (AI-based assessment tool)?

Hey!

I'am an indie developer working on an edtech product that helps teachers save time grading paper worksheets. The idea is: teachers upload or create worksheets, the system adds QR codes, students scan and complete them on paper, and our AI grades them automatically, even open-ended questions. It is used in-class with printed materials or as homework, not replacing traditional taeching, just helping with the painful part, grading.

I have bootstrapped everything and built it based on real teacher feedback, but now I am stuck trying to grow. I am trying to figure out:

• How do you build real trust with teachers? Many are skeptical of new tech, especially AI.
• What's the best way to reach early adopters in the education space (especially B2C)?
• Are there specific communities, groups, or approaches that worked for you in a similar space?
• Any tips for pricing or freemium models in education?

Any help or shared experiences would mean a lot!