SUPPORT Y7 SUMMER TERM
UNIT: Geometry and Measures 4 - Transformations
TIME ALLOCATION: 6 Hours
PRIOR KNOWLEDGE KEY WORDS STARTER
Shape, mirror line, line of KS3 Y7 Intervention
symmetry, reflection ~ Consolidation lesson 10
symmetry, object, image,
reflect, reflection,
horizontal, vertical,
coordinates, grid, quadrant,
vertices, translate,
translation, rotate, rotation,
degree º, direction,
transform, transformation.
LEARNING OBJECTIVES LEARNING OUTCOMES
LEVEL 3 To be able to reflect a 2-D shape in a vertical
Recognise reflection symmetry. or horizontal mirror line (in all 4 quadrants),
Recognise where a shape will be after also by reading & plotting coordinates.
reflection. To be able to use language and notation of
reflection.
Eg: Reflect each shape in line a.
Coordinates of image?
Repeat with line b. line a
line b
LEVEL 4
Understand and use the language and To be able to translate a 2-D shape in all 4
notation associated with reflections, quadrants, also by reading & plotting
translations and rotations. coordinates.
Recognise where a shape will be after a Eg: Translate shape C 1 left & 3 down or
translation.
1 to left
Recognise and visualise the transformation 3 down
and symmetry of a 2-D shape: To be able to use language and notation of
- reflection in given mirror lines, and line translation.
symmetry;
- translation;
explore these transformations and
symmetries using ICT.
LEVEL 5
Recognise and visualise the transformation To be able to rotate a 2-D shape given
and symmetry of a 2-D shape: - 1 corner as centre of rotation;
-rotation about a given point, and rotation - direction of rotation (clockwise or
symmetry; explore these transformations anti-clockwise);
and symmetries using ICT. - angle (90º and 180º).
To be able to use language and notation of
rotation.
To be able to recognise and visualise all 3
types of symmetry in 2-D shapes.
ACTIVITIES ICT RESOURCES
Take digital pictures of Cabri Springboard 7 - Symmetry
various everyday objects, ~ Quadrilaterals by reflecting and angles.
identifying symmetries. triangles ITP (symmetry)
What's the transformation? ~ Reflecting triangles KS3 Y7 Intervention
Give pupils several examples ~ Quadrilaterals by rotating ~ S4.1
of objects and their images triangles ~ S4.2
following reflections and ~ Translating triangles ~ S4.3
rotations. Ask them to sort Geometry Sketchpad
them into those that are KS3/ICT
reflections and those that ~ 7S4 Recognising rotation
are rotations. Get pupils to symmetry
explain how they know. MyMaths – Transformations
Analyse the objects and game. Shape/Symmetry/Lines of
images and get pupils to symmetry and rotation
describe what they see as symmetry.
the differences between
reflections and rotations.
FUNCTIONAL SKILLS and MPA OPPORTUNITIES
Rangoli patterns.
Design a logo with a given number of lines of symmetry for a sports centre.
Investigate how many symmetrical arrangements there are placing four squares edge to edge.
Research famous landmarks that have symmetry or in local area.
Rich Learning Task: The Structure Game
PLENARIES AND KEY QUESTIONS
What do you look for when trying to decide whether a shape has at least one line of
symmetry?
Talk me through what you notice in these shapes.
How do you go about finding lines of symmetry in a shape?
Make up a reflection or a rotation that is easy to do.
Make up a reflection or a rotation that is hard to do.
What makes it hard?
Sketch me a quadrilateral that has one line of symmetry; or two lines, three lines, no lines,
etc. Can you give me any others?
What is the order of rotational symmetry of each of the quadrilaterals you sketched?
What clues do you look for when deciding whether a shape has been formed by reflection or
rotation?
Make a polygon which is symmetrical but not regular
Draw a hexagon with 6 / 3 / 2 / 1 / 0 lines of symmetry. Why can’t you draw one with 4 / 5
lines of symmetry?
How many lines of symmetry can a quadrilateral have?