For teachers

Presentation decks

2 standalone teaching decks, one per section. Each is a single HTML file with the slides, the videos, the interactive tools, the check questions and the speaker notes already inside it — email it, put it on a USB stick, or open it straight from a projector laptop. Nothing to install.

12 slides 6 embedded videos 12 interactive tools 24 quick checks Dark or light theme

How the decks work

Reveal in stepsPress or Space and the bullet points appear one at a time, then the worked example. Nothing is on screen before you want it there.
Video built inThe lesson video that matches each slide sits in the side panel — no switching tabs mid-lesson. (This is the only part that needs the internet.)
Interactive toolA live model for the idea on that slide: a jumping number line, a sign-rule table, a 100-grid that highlights multiples, a factor comparer, a divisibility checker that explains every test, a powers explorer and a square-root estimator.
Quick checksOne or two questions per slide, drawn from the same verified bank as the practice pages. Type an answer and it marks instantly, or press Reveal for the full method.
Speaker notesPress N. Each slide has notes on what to model, the misconception to watch for, and a suggested time.
Discussion promptEvery slide has a question to put to the class, in the Discuss tab.
Presenter controlsO overview · T lesson timer · D dark/light · F full screen · 19 jump · ? shortcuts. Works with a presenter remote.

The decks

Section 6.1

Conducting an investigation

Plan a statistical investigation: write a question and a prediction, decide what data to collect, and record it in a tally chart or frequency table.

6 slides5 videos 6 interactive12 quick checks
Section 6.2

Taking a sample

Choose a sampling method, understand how sample size affects how much you can trust a result, and recognise bias.

6 slides1 videos 6 interactive12 quick checks

At a glance

SectionSlidesVideosTools Checks
6.1 Conducting an investigation6 5 6 12 Open ↗
6.2 Taking a sample6 1 6 12 Open ↗