# Instructor guide: Material Casimir correction and residual audit

Course: Casimir physics and dynamical boundaries

Suggested time: 55–75 minutes

## Learning target

Learners build a material-aware Casimir force model and separate interaction measurement from background control and energy-device claims.

## Prepare

- Review the ideal gap scaling.
- Define multiplicative and additive model terms.
- Prepare one blinded synthetic residual.

## Facilitation moves

- Change one correction at a time.
- Ask how each nuisance is calibrated independently.
- Keep static-force evidence separate from complete-cycle work.

## Misconception checks

- **Any short-range attraction is automatically Casimir force.** Electrostatics, patches, geometry, contamination, and calibration must be modeled and bounded.
- **Measured Casimir force proves vacuum energy extraction.** An established interaction does not close the reset, control, and complete-cycle energy ledger.

## Accessibility and participation

- Use a force ledger that does not depend on curve color.
- Translate gap powers into factor changes.
- Offer a numeric table before residual plots.

## Evidence of learning

- A corrected force ledger
- An independently constrained nuisance
- A force-versus-cycle conclusion

## Extension

Design a separation sweep that discriminates one material model from a patch-potential background.

## Evidence boundary

Assess the learner's reasoning only within the declared model and recorded observations. Do not upgrade a simulation result into a claim about an unmodeled physical system.