For teachers

Presentation decks

5 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.

30 slides 11 embedded videos 30 interactive tools 60 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 16.1

Mode, median and range

Find the mode, the median and the range of a set of data, and know what each of them describes.

6 slides3 videos 6 interactive12 quick checks
Section 16.2

The mean

Calculate the mean of a data set, find it from a frequency table, and use it to work backwards to a total or a missing value.

6 slides2 videos 6 interactive12 quick checks
Section 16.3

Choosing the right average

Choose and explain which of the mode, median and mean is most appropriate for a given context, and recognise the effect of an outlier.

6 slides1 videos 6 interactive12 quick checks
Section 16.4

Reading charts and graphs

Read and interpret bar charts, line graphs and pie charts, and recognise when a chart is misleading.

6 slides3 videos 6 interactive12 quick checks
Section 16.5

Comparing data sets and drawing conclusions

Compare two data sets using an average and a range, identify patterns and trends, and discuss conclusions and the sources of variation.

6 slides2 videos 6 interactive12 quick checks

At a glance

SectionSlidesVideosTools Checks
16.1 Mode, median and range6 3 6 12 Open ↗
16.2 The mean6 2 6 12 Open ↗
16.3 Choosing the right average6 1 6 12 Open ↗
16.4 Reading charts and graphs6 3 6 12 Open ↗
16.5 Comparing data sets and drawing conclusions6 2 6 12 Open ↗