today we will be learning how to sort shapes using venn and carroll diagrams

Today we will be learning

how to sort shapes using Venn and Carroll diagrams.

Mental Activity

We are going to look at some 2-D shapes.

We will work out the number of sides and corners they have.

What is the total of the sides of a triangle plus the corners of a square?

Multiply the number of sides of a hexagon by the number of sides of a

pentagon.

3 + 4 = 7

6 x 5 = 30

How many sides do 2 pentagons and 2 octagons have altogether?

5 + 5 + 8 + 8 = 26

How many vertices do 6 rectangles have?

6 x 4 = 24

How many right angles do 5 squares have altogether?

5 x 4 = 20

How many sides do 3 parallelograms have?

3 x 4 = 12

Main Activity

Today we will sort objects

using Venn diagrams and Carroll diagrams.

Here is a Carroll diagram.

straight sides not straight sides

four sides

not four

sides

Where should each

shape go?



four sides

not four

sides

Where will you put the

square?


Whataboutthe trapezium?


four sides

not four

sides



four sides

not four

sidesAndthe hexagon?



four sides

not four

sides

What about this

one?



four sides

not four

sides

And this

one?



four sides

not four

sides

Where will you put the

last shape?

Can you see how the Carroll diagram works?


four sides

not four

sides

Can you remember what a Venn diagram is?

four sides straight sides

We will use these groups.

Sort these shapes using the Venn diagram.


Where will the square go?


What about the hexagon?


Why must the square go here?

Where should we put the triangle?


Where should the trapezium go?


What about this four-sided shape?


Where should we put the moon?


Can you see how the Venn diagram works?


Group Work

Draw Venn diagrams using the information on Carroll diagrams.

Sort shapes using either a Carroll or a Venn diagram.

Sort shapes using either a Carroll or a Venn diagram.

today we will be learning how to sort shapes using venn and carroll diagrams

Documents