Teacher-Oriented Resources
Yes, we all know NZQA's site, but finding the useful things inside it can be a problem.
Clarifications on the standards, explaining what must be seen for each grade level.
Exemplars for most standards, for help with marking grade boundaries.
NCEA requirements, for endorsements, UE etc.
All updates on assessment and operational matters, including dates. Calendar for year is here.
NCEA Maths and Stats resources on TKI.
Aimed at NZ teachers of Maths and Stats. Vital to keep up to date with this.
Census at School also has a section with resources aimed at all the Statistics Standards.
Student-Oriented Resources
NCEA specific unit booklets, many of them very good. Videos on various topics. Geogebra resources.
A series of videos that covers most of the topics for seniors, aimed at the NZ curriculum.
A compehensive collection of videos, notes and exercises, but very much on the dry side.
Mostly for the videos, including some on unusual topics, such as linear programming.
Free worksheets, good for extension stuff for juniors in particular.
Scholarship calculus books for students, and matching teacher sets. Starts at Year 12.
Videos that elegantly show the basic principles of Calculus.
Year 13 only. Covers the theoretical and practical underpinnings of calculus, with suitable extension work.
Graphing Options
This is the one I mostly use these days, because it is easy, especially to save pre-prepared material. Somewhat limited in output options, like axis labelling etc.
Has its fans, and I found it quite good.