[Chi Meson]

I suggest that with enough teachers around, we can each pick a topic ( or two) and establish a time for that topic to be reviewed.

For example, I would be able to review Diffraction & interference, Thin-film interference, & wave-particle (photelectric, Compton, Davisson-Germer, etc);
Thursday PM, from 2 to 4 (still just an example).

A common meeting room would still be best for this, but if students knew when a particular subject was to be reviewed, they could target that time, and if more than one student needed to review that topic, this would make that review more efficient.

And if I knew I was reviewing diffraction, I can bring my green laser and some diffraction plates!