7 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
The four quadrants, and why coordinates are always written across first.
British corbettmaths
Reading a map scale and converting both ways between map and ground.
British corbettmaths
Translating a shape by a vector, and reading the vector back off a picture.
British corbettmaths
Reflecting in the axes and in other mirror lines, with the perpendicular-distance check.
British corbettmaths
Rotating about a centre, using tracing paper as the model for what the arithmetic does.
British corbettmaths
Working backwards: given an object and its image, find the angle, the direction and the centre.
British corbettmaths
Enlarging from a centre by a whole-number scale factor, and why the image is similar rather than congruent.
| Section | Video | Channel | Accent | Level |
|---|---|---|---|---|
| 14.1 | Algebra Basics: Graphing On The Coordinate Plane | mathantics | American | core |
| 14.2 | Maps and Scales | corbettmaths | British | core |
| 14.3 | Translations | corbettmaths | British | core |
| 14.4 | Reflections | corbettmaths | British | core |
| 14.5 | Rotations | corbettmaths | British | core |
| 14.5 | Describing Rotations | corbettmaths | British | core |
| 14.6 | Enlargements | corbettmaths | British | core |