For Educators

Free tools, built for the classroom.

Welcome — these tools are designed to help your teaching workflows. I'm a primary school teacher who also builds software, and I make the tools I wish I'd had from the start: free, and built around how a classroom actually runs.

Structured Literacy
Codeline Find the gap, teach the fix — Years 1–8.
  • Gap Finder
  • Word Checks A & B
  • Lesson Builder
Lesson Builder
A lesson built in Codeline — learning intention, success criteria, curriculum link and the teaching script for the ‘ar’ spelling pattern. Codeline’s Code Reference — the Year 3 milestones for r-controlled vowels, vowel teams, syllables, schwa and morphology, with that year’s heart words. Codeline’s print-ready Year 1 Word Check A stimulus sheet, with the 25 heart words above and the spelling focus beside each word. Codeline’s Structured Literacy novel studies for Years 4–6, each unit showing its author, year level and length.
Free · No login · No ads

Structured Literacy planning, from word check to lesson plan.

Codeline is a daily reference, assessment and lesson-planning tool for the Structured Literacy Programme, built around word checks. Paste in the words a student is getting wrong and it matches each one against the year-level word checks, tells you the pattern and year it belongs to, and can build a printable catch-up lesson — learning intention, success criteria and curriculum link included. It also includes the full literacy reference by year, print-ready word-check assessments and word lists, a five-step Lesson Builder, and a set of Structured Literacy novel studies for Years 4–6. (Updated 6/09/2026)

Gap Finder Code reference by year Assessments & word lists Lesson Builder Novel studies Y4–6
Open Codeline →
NZ Curriculum Maths
Chalkline The whole maths curriculum, Years 1–8.
  • 77 concepts
  • Teaching order
  • Diagnostic checks
At a glance
Chalkline’s whole-curriculum grid — every mathematics strand from Year 1 to Year 8, showing how many concepts sit in each. Chalkline’s Year 3 view — mathematics concepts in teaching order, each with its strand tag and the years it spans. A Chalkline concept opened up — rounding and estimation, with its strand, curriculum levels, Number Framework stages and the years it is taught in. Chalkline’s strand view — the same concepts grouped by strand rather than by year level.
Free · No login · No ads

The whole maths curriculum, at a glance.

Chalkline is a free planning reference covering all mathematics concepts across Years 1–8 of the New Zealand Curriculum. Every concept comes with a plain-language description, the order to teach it in, what needs to be secure first, diagnostic checks, materials and worked examples — mapped onto both the 2026 Mathematics and Statistics learning area and the 2007 curriculum levels and Number Framework stages. (Updated 6/09/2026)

77 concepts Year, phase & strand views Prerequisites & teaching order Diagnostic checks 2025 & 2007 curriculum mapping
Open Chalkline →
Free · Ad-free · No trackers

A calm way to bring current events into the classroom.

Compass World News is a privacy-first news reader I built after noticing how hard it can be to find balanced coverage for classroom discussion. It groups reporting on the same story from across the political spectrum, so students — and teachers prepping a current-events lesson — can see how different outlets are framing the same event, rather than reading from a single source.

A political lean dial lets you see where a story sits across the spectrum, and blindspot mode surfaces stories one side has barely covered — useful for teaching media literacy and critical reading of the news. It's ad-free and doesn't track you, with no account required.

Multi-source stories Political lean dial Blindspot mode Private, no trackers Free
View on Google Play →
The developer side

Compass World is one of several things I’ve built. Under the Southam Apps name there are word puzzles, Minecraft tools and more.

Visit Southam Apps →