Instructional Design · AI

Lesson diagnosis

Paste a lesson script. The AI doesn't fix the text — it diagnoses the educational structure: opening, context, content, application and closing.

Accepts .txt, .md, .csv, .html, .rtf and .docx (Word), up to 500KB. For .pdf, copy and paste. Everything is processed in your browser.

The anatomy of a good lesson

A lesson that works is rarely just "well-explained content". It has an arc: an opening that hooks attention, context that answers "why does this matter to me?", organized core content, concrete examples, a moment of application and a closing that ties it together and connects to the next step.

When one of these pieces is missing, the symptom shows: a lesson that starts cold, a learner who doesn't grasp the relevance, a concept without an example, theory without practice, or an abrupt ending without synthesis. This diagnosis looks for clues of these pieces in your script and flags what may be missing — the final judgment is yours.

The analysis uses AI to read the script and diagnose the pedagogical structure. It's a support to spot gaps fast — it doesn't replace your critical reading or your course's context. Don't paste sensitive data; the text is sent for processing with a per-person usage limit.

Frequently asked questions

What structure does the tool look for in a lesson?

A pedagogical arc: opening/hook, context/relevance, core concept, concrete examples, application/practice and closing/synthesis. The tool flags which pieces are present or missing in the script.

Does the tool fix the lesson text?

No. It diagnoses the pedagogical structure — it doesn't rewrite or fix the writing. The goal is to spot gaps quickly; the final judgment is yours.

Is the tool free?

Yes. It's part of the EduBuilders Toolbox, a collection of free tools for instructional designers, L&D professionals and educators. No sign-up, no login.

What is EduBuilders?

EduBuilders is an educational-product studio working at the intersection of education, technology and AI. Besides building digital learning products, it maintains the EduBuilders Toolbox: free tools made by someone who actually works in Instructional Design.

Who is Ivan Chagas?

Ivan Chagas is an instructional designer, educational-product builder and founder of EduBuilders. He has worked in education since 2012, at the intersection of instructional design, artificial intelligence and learning technology, and built these tools to solve real problems for course builders.