They may not know the specialized jargon, but they're smart. Students cluster around the heaters. They understand the difference between radiation and convection. If you 're doing the Solar System but only get out to Venus, that's okay. Amateur astronomy groups get lots of requests for volunteers for school visits.
Success takes time, energy, commitment.
The Deans understand, but it's the department that counts, and the acid test is how departments do their hiring and tenure. Students can vote with their feet in a university setting.