There are many ways the NZ physics teaching community shares information these days throughout the year other than the gatherings at NZIP and SciCon conferences:
Emails from Mike Stone or Kate Rice (via HODs in some schools)
Emails from Dave Thrasher (random bits of info and occasional attached files).
The last option above is managed by Dave Thrasher, physics teacher at St Cuthbert's College.
If you wish to be on his email list, please let him know: david.thrasher@stcuthberts.school.nz
If you have information or things you wish to share, just get in touch.
Dave's emails are used to inform folks about Auckland-based events as well as other info NZ-wide.