Download OBJECTIVES: To recognise and make quadrilaterals with increasing

OBJECTIVES: To recognise and make quadrilaterals with increasing accuracy.
UNIT: 2
To explain definitions and some properties about quadrilaterals.
FOCUS: QUADRILATERALS
LESSON: 4
COMMUNICATION
LANGUAGE OF LEARNING
 Vocabulary of the topic
Vocabulary U2 L1, U2 L3(start)
Pentagon
Equal sides
Isosceles
Equilateral
Scalene
Right-angle
Acute
Obtuse
Quadrilateral’s classification(main
teaching)
parallelograms
squares
rectangles
rhombus
kites
inverted kites
trapezium
trapezoid.
Measuring triangles U2 L3
Protactor
Degrees
Sum
LANGUAGE FOR LEARNING

Language instruction
Ask children to answer the following questions on their whiteboard (mental
problems U2 L4).
Tell them, in pairs, to make quadrilaterals on the geoboard. Children draw
them on the dot paper.
Encourage them to think about possible classifications.
Establish the classification according to sides and angles.
Children cut out their quadrilaterals and stick them in the right places
(worksheet 2.7).
Pupils draw some quadrilaterals on the worksheet and measure the angles.
They fill the table (worksheet 2.8).
Cut the vertices of a quadrilateral to show the sum of the four angles.
Ask to look carefully at the quadrilaterals picture (worksheet 2.9).

Questions for learning
What’s a quadrilateral?
How many quadrilaterals do you
know?
What do you know about them?
How can you be sure if two
quadrilaterals, you have drawn in a
different position, are equal?
How can we classify them?
Where’s the place for this
quadrilateral? Why?

Possible answers
It’s a … with … sides and ….
angles.
I know squares, rectangles,
rhombus,…
A square has……..and………
May be we can overlap them.
We can classify them depending on
the….. or the ……..
Here it is, because it has………
LANGUAGE THROUGH
LEARNING
 Language that comes
through the lesson
Definitions and properties
Adjacent
Parallel
Width
Length
Angle
What do you notice about the sum of
the angles of a quadrilateral?
What quadrilaterals can you see on
the picture?

I think the…… is………..degrees.
I can see…………..
Language to express conclusions
“A quadrilateral is a four-sided shape. They can be classified as
parallelograms, squares, rectangles, rhombus, kites, inverted kites,
trapezium, trapezoid.”
“Quadrilateral: A four-sided polygon. The angles of a quadrilateral total
360º.
Rectangle: A three-sided polygon having all right angles but different length
and width.
Square: A four-sided polygon having equal-length sides and all right angles.
Rhombus: A four-sided polygon having all four sides of equal length and
opposite angles equal. It has not right angles.
Parallelogram: A four-sided polygon with two pairs of parallel sides and
opposite angles equal. It has not right angles.
Trapezium: A four-sided polygon having exactly one pair of parallel sides.
Trapezoid: A four-sided polygon having no sides parallel”
RESOURCES: whiteboard, pen, mental problem U2 L4 sheet, worksheets 2.7, 2.8, 2.9,protactor, ruler, geoboard, elastic bands, dot paper,
http://www.bbc.co.uk/schools/revisewise/maths/shape/, http://www.primarygames.co.uk/PG5/Shape/year6.html,
http://www.eyepleezers.com/aaamath/geo612x3.htm