YEAR 8 (ma3)
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Geometrical reasoning: lines angles and shapes Top
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Y8 Objectives |
Resources |
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Identify alternate angles and corresponding angles |
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Understand a proof that angles in triangle add up to 180º Understand proof that angles in quadrilaterals add to 360º proof that ext. angle of triangle = sum of opp. int. angles |
O Angle rules P triangle investigation |
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Know and use properties of shapes to solve problems |
P creating tessellations W how to create a tessellation |
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Know properties of congruent shapes |
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Know/use properties of cuboids and composite shapes |
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Begin to use plans and elevations |
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Y8 Objectives |
Resources |
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Transform 2-D shapes by combinations of transformations |
W using a mirror W mirror match P reflecting P rotating |
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Identify all the symmetries of 2-D shapes |
O squared paper grid |
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Understand/use the language and notation of enlargement Enlarge 2-D shapes, given centre and +ve scale factor Explore enlargements using ICT |
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Make simple scale drawings |
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Y8 Objectives |
Resources |
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Given the co-ords of A and B, find the midpoint of AB |
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Y8 Objectives |
Resources |
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Construct the midpoint and perpendicular bisector Construct the bisector of an angle Construct the perpendicular from a point to a line Construct the perpendicular from a point on a line |
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Construct triangles (SSS) |
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Find simple loci to produce shapes and paths |
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Use ICT to explore constructions |
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Y8 Objectives |
Resources |
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problems involving length problems involving area problems involving volume and capacity problems involving mass problems involving time |
W time - how long? P basic clock face W time collect a letter W speed collect a joke |
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Know rough metric equivalents of imperial measures |
L&W lemon meringue pie |
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Use bearings to specify direction problems involving angles and bearings |
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Deduce and use formula for the area of a triangle Deduce and use formula for the area of a parallelogram Deduce and use formula for the area of a trapezium Calculate areas of compound shapes |
P area P measuring perimeter N area notes |
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Know and use formula for the volume of a cuboid |
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Calculate s.area and volumes of cuboids and composites |
W Cubes |