Download Year 8 Autumn 1

Year 9 Autumn 2
Geometrical reasoning
Prior Knowledge: In year 8 students cover angle sums of triangles and quadrilaterals, angles around a point and on a straight
line. This should be revision and the main thrust of this topic should be regular polygons, and problems and proof involving
interior/exterior angles. This will lay the ground work for the ‘proof’ topic in the summer term.
Lesson Number
Learning Outcomes
Notes
Timings
and Title
1
Triangles and
quadrilaterals
-
2
Parallel lines
3
Interior and
exterior angles
4
-
Know the angle sums for triangles and quadrilaterals, angles around a
point and on a straight line
Use standard conventions for labelling the sides and angles of
triangle ABC
Apply these angle facts to solve problems involving finding missing
angles
Solve problems which occur in a real world context
Know angle facts involving opposite, alternate and corresponding
angles
Apply these angle facts to solve problems involving finding missing
angles
Solve problems which occur in a real world context
TBAT find the interior and exterior angles of a regular polygon
Be able to explain how to calculate and use these angles to solve a
problem
Able to pull together facts learnt in previous lessons to solve a range
1
1
1
1
Review of angle
facts
5 Congruent
triangles
of different angle problems
-
Use standard conventions for labelling the sides and angles of a
triangle ABC
Know and use the criteria for congruence of triangles
1