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Unit 1 | Algebra

Unit 2 |Graphs

Page 1 | Straight line graphs

Unit 3 |Geometry and Measure

Page 2 | Symmetry

Page 3 | Coordinates

Page 4 | Perimeter, Area, Volume

Page 5 | Circle geometry

Page 6 | Measurement

Page 7 | Trigonometry

Page 8 | Pythagoras

Page 9 | Angles

Page 10 | Shapes

Page 11| Time

Page 12 | Locus

Unit 4 | Numbers

Page 1 | Speed, Distance and time

Page 2 | Rounding and estimating

Page 3 | Ratio and proportion

Page 4 | Factors, Multiples and primes

Page 5 | Powers and roots

Page 6 | Decimals

Page 7 | Positive and negative numbers

Page 8 | Basic operations

Page 9 | Fractions

Page 10 | Percentages

Unit 5 | Statistics and Probability

Page 1 | Sampling data (MA)

Page 2 | Recording and representing data

Page 3 | Mean median range and mode

Page 4 | Standard deviation

Unit 4 | Calculus

Symmetry

L.O – To be able to find the number of lines of symmetry and the order of rotational symmetry for a wide range of shapes

Line Symmetry :

A line of symmetry divides the shape into two equal parts.

Each part is a reflection of the other.

If a shape is folded along it’s line of symmetry each part fits exactly on top of the other.    Remember, a regular polygon has the same number of lines of symmetry as it has sides    Rotaional Symmetry :

This is where you can rotate the shape into different positions that all look the same

A shape has rotational symmetry if it fits on top of itself more than once as it makes a complete turn.

The order of rotational symmetry is the number of times that the shape fits on  top of itself. This must be 2 or more.

The “centre of rotation” is the point about which the shape turns.      Remember, a regular polygon has the same order of rotational symmetry as it has sides.

Questions :

Draw all the lines of symmetry onto these shapes and write down the order of rotational symmetry.       Pick out the shapes with

• only one line of symmetry
• rotational symmetry of order 2 Mark with a cross the centre of rotation. Shade one more square to make a pattern with one line of symmetry Shade one more square to make a pattern with

rotational symmetry of order 2

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