Let’s break it down.
The CODEX learning guide provides original, rule-based explanations for learners who want another way into an idea.
The idea in plain language
A fraction counts equal pieces. The bottom number tells you how many pieces make one whole; the top counts the pieces you take.
Clear answers, no black box
Is this a generative AI tutor?
No. This is a deterministic explanation system built from the same original content as your lessons. Topic selection and explanation type choose authored content. It does not send data to an AI provider or invent answers.
Could a free AI service be added later?
The lesson content and guide are independent of service providers, so a genuinely free service could be integrated separately. No AI integration is enabled or required here, and no promise of unlimited access is made.
Do solutions complete my lessons?
No. Use solutions to understand the reasoning, then return to the interactive lesson. Only correctly checked activities followed by lesson completion unlock your next discovery.