| Year 9 | Spring Term | Unit 5 | SSM 3 | 6 Hours |
Objective
|
NNS
|
Possible
Resources |
|
Distinguish
between conventions, definitions and derived properties. |
Geometrical
reasoning: lines, angles and shapes (178–179,
190–191) |
|
|
Understand
congruence. |
Geometrical
reasoning: lines, angles and shapes (178–179,
190–191) |
|
|
Transform
2-D shapes by combinations of translations, rotations and reflections, on
paper and using ICT; know that translations, rotations and reflections
preserve length and angle and map objects on to congruent images;
identify reflection symmetry in 3-D shapes. |
Transformations
(202–217) |
|
|
Enlarge
2-D shapes, given a centre of enlargement and a whole-number scale factor,
on paper and using ICT; identify the scale factor of an enlargement as the
ratio of the lengths of any two corresponding line segments; recognise
that enlargements preserve angle but not length, and understand the
implications of enlargement for perimeter. |
Transformations
(202–217) |
|
|
Use
and interpret maps and scales drawings. |
Mensuration |
|
|
Use
proportional reasoning to solve a problem;
interpret and use ratio in a range of contexts. |
Ratio
and proportion
(78–81) |
|
Indicative Attainment
| Level | Statement |
| 3 | I can say if a shape has been reflected. |
| 3 | I can reflect a point in a straight line. |
| 3 | I can draw a line of reflection onto a 2D shape. |
| 4 | I can label a line using mathematical convention. |
| 4 | I can explain what parallel lines are. |
| 4 | I can explain what perpendicular lines are. |
| 4 | I can reflect a shape in a straight line. |
| 4 | I can describe where a shape will be after a translation. |
| 4 | I can describe a translation in words. |
| 5 | I can label an angle made by the points A, B and C. |
| 5 | I can label the sides and vertices of a polygon using mathematical convention. |
| 5 | I can label parallel sides on a polygon using mathematical convention. |
| 5 | I can label sides of equal length on a shape using mathematical convention. |
| 5 | I can reflect a shape in a diagonal line. |
| 5 | I can describe a translation using vectors. |
| 5 | I can rotate a shape about a given point. |
| 5 | I can enlarge a shape using a positive integer scale factor. |
| 5 | I can find all lines symmetry on 2D shapes. |
| 5 | I can find the rotational symmetry of a 2D shape. |
| 5 | I can use scales to make scale drawings. |
| 6 | I can know what conventions, definitions and derived properties of shapes are. |
| 6 | I can explain what congruent shapes are and identify them. |
| 6 | I can explain what a similar shape is. |
| 6 | I can transform an object using a combination of translation, rotation and reflection. |
| 6 | I can enlarge a shape by a positive integer scale factor, given a centre of enlargement. |
| 6 | I can find planes of symmetry in 3D shapes. |
| 6 | I can use the scale on a map to find the original length of a road, street, etc. |
| 6 | I can label a triangle with opposite, adjacent and hypotenuse. |
| 7 | I can enlarge a shape by a fractional scale factor, given a centre of enlargement. |
| 7 | I can apply my knowledge of ratio to enlargements. |
| 7 | I can calculate the sin, cos or tan of an angle given the side lengths of a right angled triangle. |
| 8 | I can describe the effect that enlargements have on the area and volume of shapes. |
| 8 | I can use sin,cos and tan to find any missing part of a right angled triangle. |