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Learning Intention: Describe and perform the additive transformations (reflection, rotation or translation) noting all key parameters (e.g for a rotation note the centre, direction and angle)
Learning Intention: Describe and perform the additive transformations (reflection, rotation or translation) noting all key parameters (e.g for a rotation note the centre, direction and angle)
Diagnostic:
Diagnostic:
Explanation:
Explanation:
Notes - Transformations
Notes - Transformations
Translation
Translation
Each point moves the same distance and direction. Describe by a vector [left/right over up/down]
Each point moves the same distance and direction. Describe by a vector [left/right over up/down]
Reflection
Reflection
each point lies the opposite side of an axis of symmetry (mirror line)
each point lies the opposite side of an axis of symmetry (mirror line)
Rotation
Rotation
all points turn through the same angle about a fixed point.
all points turn through the same angle about a fixed point.
Enlargement
Enlargement
Multiplying the lengths in the object shape by the scale factor gives the lengths in the image.
Multiplying the lengths in the object shape by the scale factor gives the lengths in the image.
Centre of Enlargement (COE) is found by joining points from image with same point in object.
Centre of Enlargement (COE) is found by joining points from image with same point in object.
Example:
Tasks:
Complete On Track 1: p91, 92, 93, 94, 95
Fast Track 1: p 88-93
Diagnostic answers:
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