We have a collection of videos to help GCSE Maths students learn about different types of Transformation: Translation, Reflection, Rotation and Enlargement.

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More GCSE Maths Topics

Transformation Games and Activities

### Translation

We translate a shape by moving it up or down or from side to side, but its appearance does not change in any other way. When we translate a shape, each of the vertices must be moved in exactly the same way. Every translation has a translation vector which gives the direction in which the shape is moved.

**How to translate a shape given the translation vector?**

This video shows how to transform a shape using a given translation vector.**GCSE foundation maths transformations - Translating a shape**

Examples:

1. Plot the points (1,1), (2,1) and (1,2) and connect the dots to make a polygon.

Label your shape A and carry out the transformation. Translate A by the given vector and label the shape B.

2. State fully the single transformation that maps A to B.

### Reflection

When we reflect a shape, we 'flip' it over a line of symmetry or 'mirror'.

**GCSE Maths transformations: Reflections in horizontal and vertical lines**

Understand simply how to reflect shapes in vertical and horizontal lines. The trick is in understanding the equations of the horizontal and vertical lines. Reflections to help with GCSE mathematics, one in a line of the form x = a another in a line of the form y = b.**How to reflect on the coordinate plane?**

Example:

(a) Reflect shape A in the x-axis and label it shape B.

(b) Reflect shape A in the y-axis and label it shape C.

(c) Reflect shape A in the line x = 3 and label it shape D.

(d) Reflect shape A in the line y = 3 and label it shape E.

(e) Reflect shape A in the line y = -0.5 and label it shape F.

(f) Reflect shape A in the line y = x and label it shape G.

(g) Reflect shape A in the line y = -x and label it shape H.

### Rotation

When we rotate a shape, we turn it a certain number of degrees around a fixed point. When describing a rotation, we need to describe the center of rotation, the angle of rotation and the direction of rotation.

**GCSE transformation: Rotations about the origin**
**Transformations - Rotate 90 degrees**

Rotating a polygon around the origin.

For a 90-degree rotation around the origin, switch the x,y values of each ordered pair for the location of the new point.**How to rotate shapes with and without tracing paper?**

Example:

Rotate ABC about (0,-1) by 90° clockwise.

### Enlargement

When describing enlargement, we must state the scale factor and the centre of enlargement.

**GCSE transformations: enlargement by positive and negative scale factor**

GCSE mathematics revision help. An example on how to enlarge a shape by a positive and negative scale factor for GCSE revision. A scale factor of 2 and -2 is chosen.**Enlargement with Fractional and Negative Scale Factors**

GCSE Maths revision Exam paper practice & help.

Example:

Triangle PQR is shown on the grid.

(a) Enlarge triangle PQR by scale factor 1/3 with centre of enlargement C(4,5)

(b) Triangle PQR is enlarged by scale factor -3 with centre of enlargement C(4,5). P is mapped onto (31,14). Calculte the coordinated of the point that Q is mapped onto.

### Translation, reflection, rotation and enlargement

Three transformations from GCSE mathematics

Reflection, rotation and enlargement from GCSE mathematics, foundation level.

Examples:

(a) Enlarge triangle T by scale factor 3, centre the origin. Label the image A.

(b) Rotate the triangle T through 90° anti-clockwise anout the origin. Label the image B.

(c) Reflect triangle I in the line x = 4. Label the image C.**Describe the transformation and draw the image**

GCSE Math AQA Q6 Higher Paper 1 June 2007

Example:

The diagram shows two triangles, A and B.

(a) Describe fully the single transformation that maps triangle A onto triangle B.

(b) On the diagram, draw an image of triangle after it is reflected in the line y = x. Label your image C.**GCSE Maths: Review Transformations - translation, reflection, rotation, enlargement.**
**Transformations: Translation and Enlargement D Grade.**

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

Related Topics:

More GCSE Maths Topics

Transformation Games and Activities

This video shows how to transform a shape using a given translation vector.

Examples:

1. Plot the points (1,1), (2,1) and (1,2) and connect the dots to make a polygon.

Label your shape A and carry out the transformation. Translate A by the given vector and label the shape B.

2. State fully the single transformation that maps A to B.

Understand simply how to reflect shapes in vertical and horizontal lines. The trick is in understanding the equations of the horizontal and vertical lines. Reflections to help with GCSE mathematics, one in a line of the form x = a another in a line of the form y = b.

Example:

(a) Reflect shape A in the x-axis and label it shape B.

(b) Reflect shape A in the y-axis and label it shape C.

(c) Reflect shape A in the line x = 3 and label it shape D.

(d) Reflect shape A in the line y = 3 and label it shape E.

(e) Reflect shape A in the line y = -0.5 and label it shape F.

(f) Reflect shape A in the line y = x and label it shape G.

(g) Reflect shape A in the line y = -x and label it shape H.

Rotating a polygon around the origin.

For a 90-degree rotation around the origin, switch the x,y values of each ordered pair for the location of the new point.

Example:

Rotate ABC about (0,-1) by 90° clockwise.

GCSE mathematics revision help. An example on how to enlarge a shape by a positive and negative scale factor for GCSE revision. A scale factor of 2 and -2 is chosen.

GCSE Maths revision Exam paper practice & help.

Example:

Triangle PQR is shown on the grid.

(a) Enlarge triangle PQR by scale factor 1/3 with centre of enlargement C(4,5)

(b) Triangle PQR is enlarged by scale factor -3 with centre of enlargement C(4,5). P is mapped onto (31,14). Calculte the coordinated of the point that Q is mapped onto.

Reflection, rotation and enlargement from GCSE mathematics, foundation level.

Examples:

(a) Enlarge triangle T by scale factor 3, centre the origin. Label the image A.

(b) Rotate the triangle T through 90° anti-clockwise anout the origin. Label the image B.

(c) Reflect triangle I in the line x = 4. Label the image C.

GCSE Math AQA Q6 Higher Paper 1 June 2007

Example:

The diagram shows two triangles, A and B.

(a) Describe fully the single transformation that maps triangle A onto triangle B.

(b) On the diagram, draw an image of triangle after it is reflected in the line y = x. Label your image C.

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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