GCSE Maths (Edexcel)

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Geometry and measures Properties and constructions

Introduction to Transformations

3:06 identify, describe and construct congruent and similar shapes, including on coordinate axes, by considering rotation, reflection, translation and enlargement (including fractional and negative scale factors)
Spec G7
Previous Angles in Regular Polygons Next Reflection
  • A transformation is a way of changing the size, position, or orientation of a shape
  • Size change and position change are examples of transformations
  • Orientation change refers to the specific arrangement of a shape
  • Reflections and rotations are examples of orientation changes and transformations
  • Anything that changes the shape altogether is not a transformation
  • An object is a shape being transformed
  • An image is the result of a transformation on an object
  • The effects of transformations can be understood by comparing the coordinates of vertices of the object and image
  • A coordinate grid is often used to plot transformations
  • By comparing the coordinates of corresponding vertices, the transformation can be determined

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