Every lesson moves through a concise mechanism, experiment, written evidence brief, and checkpoint. Drafts stay in your browser and can be exported as Markdown; the complete theory chapter remains available afterward as optional reference.
8
lesson experiments
8
exportable worksheets
8
reference chapters
8
knowledge checks
Canonical learner path
Each route keeps the mandatory learning loop concise, saves its worksheet independently, and loads the long-form chapter only when the learner opens the deep dive.
