26 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.
American mathantics
Why we use letters at all, and what an expression means — the right video to open the whole unit with.
American Math with Mr. J
Turning a phrase such as “5 more than n” into an expression, one operation at a time.
American Math with Mr. J
The harder wording — “4 more than twice a number” — where the order of the operations decides the answer.
American stretchMath with Mr. J
More practice at translating words into algebra, with worked examples.
British Corbettmaths
The British-curriculum method for substituting values, including negatives.
American Math with Mr. J
What substitution is and why you replace the letter before calculating. (“Evaluate” is the American word for it.)
American Math with Mr. J
A step-by-step guide with several worked examples.
American stretchMath with Mr. J
Extends the method to formulae with two or more letters.
British Corbettmaths
Uses the exact wording of the Cambridge syllabus — the best match for this section.
American Math with Mr. J
Deals with the question learners get wrong first: which terms are actually alike?
American Math with Mr. J
The method itself, built up slowly. (“Combining” = “collecting”.)
American Math with Mr. J
Longer practice set with expressions in several letters.
American stretchMath with Mr. J
Ties together terms, coefficients and constants — useful revision for 2.1 as well.
British Corbettmaths
Exactly the Stage 7 skill: one bracket, multiplied by a number or a letter.
American Math with Mr. J
Why expanding works. (“Distributive property” is the American name for expanding brackets.)
American Math with Mr. J
Expanding two brackets and then collecting — the skill needed for the harder questions in this section.
British stretchCorbettmaths
Beyond Stage 7, but worth seeing if you finish early — it is where this leads next.
American mathantics
The balance idea and one-step equations, built from scratch.
American mathantics
Two-step equations, following straight on from Part 1.
British Corbettmaths
The British layout, with the working set out the way it is expected in exams.
American Math with Mr. J
Slow, careful treatment of the inverse-operation idea.
British stretchCorbettmaths
Turning a worded problem into an equation before solving it — the hardest part of this section.
American stretchMath with Mr. J
Equations that contain brackets.
British Corbettmaths
What the symbols mean and how to read an inequality aloud.
British Corbettmaths
Open and closed circles, and which way the arrow points.
British stretchCorbettmaths
Solving an inequality with the same steps as an equation.