Unit 9 · Sequences and functions

Video lessons

4 lessons from established maths channels, all taught by native English speakers and all matched to a specific section of Unit 1. Every video ID was verified, so none of these links are broken.

CorbettmathsMath Antics Math with Mr. JKhan Academy Mathsaurus
This is the one page that needs an internet connection. The players below stream from YouTube. If you are working offline, use the printable PDFs on the downloads page instead, and come back to the videos later.

9.1 Generating sequences1 videos

Sequences: Patterns

British corbettmaths

Spotting the rule in a growing pattern, and continuing it.

Open on YouTube ↗

9.2 Using the nth term2 videos

The nth Term

British corbettmaths

Finding the nth-term rule of a linear sequence, then using it to reach any term.

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The nth Term — worked answers

British stretchcorbettmaths

Full solutions to a practice set. Try the questions yourself first.

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9.3 Functions and function machines1 videos

Function Machines

British corbettmaths

Forwards and backwards through one- and two-step machines, building up to algebraic ones.

Open on YouTube ↗

All links in one tablecopy-friendly

SectionVideoChannelAccentLevel
9.1Sequences: PatternscorbettmathsBritishcore
9.2The nth TermcorbettmathsBritishcore
9.2The nth Term — worked answerscorbettmathsBritishstretch
9.3Function MachinescorbettmathsBritishcore