Room 28
Learning Objectives
Level 4
To be able to demonstrate how to draw and
measure angles accurately.
Can you explain in simple steps how to use
use a protractor?
To recall that the sum of the angles on a
line is 180o and the sum of the angles at a point is 360o and to use this
knowledge to investigate angle puzzles.
If there are 5 equal angles around a point,
can you work out the angles?
Level 5
To be able to calculate using the angles in parallel lines.
To be able to calculate using the angles in parallel lines.
Can you name the three rules we use?
Resources
Level 4
Drawing and measuring angles
Ten Ticks 5, 3, page 5 (print)
CIMT Interactive: Measuring Angles
Angle rules
Ten Ticks 5, 3, page 17
CIMT Interactive: Angles on a Line
Level 5
Parallel Lines
Ten Ticks 5, 3, pages 27-8
Homework:
Learning Objective for next lesson:
Level 4
To investigate and then remember that the
angles in a triangle add to 180o.
How do we know that the angles in an
equilateral triangle will always be 60o?
Level 5
To investigate and then remember that the
sum of the angles in a quadrilateral is 360o.
Three angles are 110, 90 and 80 - what is
the missing angle?
To be able to define and then calculate the
exterior angle of a triangle and quadrilateral.
Can you prove that the external angle of a
triangle is equal to the two opposite sides?
