One progression model. Many individual journeys.

Readiness is subject-specific. Students can enter at the appropriate tier after a review and revisit skills when needed.

Explore an interest

Try a guided activity, ask questions, and explain what you noticed.

Learn essential skills

Practice core concepts, follow procedures, and demonstrate the basics.

Create and improve

Complete a project, test it, troubleshoot, and document decisions.

Integrate and demonstrate

Tackle an advanced challenge, justify choices, and present evidence.

Tier	Typical evidence	Student example
Discovery	Participation, safe behavior, and a basic explanation	Explain what a sensor does.
Foundations	Demonstrate essential skills and follow a procedure	Wire and program a guided sensor circuit.
Builder	Complete, test, and improve a project	Build a working environmental monitor.
Accelerator	Integrate, evaluate, document, and defend choices	Compare model predictions with measured data and present limitations.

Accelerator is an advanced K–12 readiness tier. It does not imply university credit, professional qualification, employment, or investment.