**Shapes**

**Shape - what we will do this week**

Identify, visualise and describe properties of 3D shapes; use these properties to sort 3D shapes; Recognise and describe properties of polygons; Classify quadrilaterals

Starter

Find lines of symmetry.

In Pairs draw as many shapes as you can in three minutes with only one line of symmetry.

TASK

Now swap with another pair to compare.

Who has the most unusual shapes?

Now draw as many shapes as you can with at least 2 lines of symmetry in five minutes.

Main Focus -Sort 3D shapes according to their properties; Visualise 3D shapes from 2D drawings

Get into a circle.

We are going to look at some 3D shapes

What is the same about these two shapes and what is different? (Key words: faces, vertices, edges,)

Sorting

How could we sort our shapes into 2 sets, so that every shape appears in one but not both sets, i.e. there is no overlap?

Car

This is one way - Carroll Diagram

in small groups select a shape - now describe it to the others - can they guess it?

Key words: Vertices, edges, faces, sides

Bonds to 100

**Starter**

On your white boards draw a 3 by 4 grid. Write in the numbers to make 100.

Visualise 3D shapes from 2D drawings;

Describe properties of prisms and pyramids

Main Activity

http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/3d/index.htm

Can you name theses shapes?

Have a look at these prisims.

http://www.learner.org/interactives/geometry/3d_prisms.html

What do prisims have in common?

Have a look at these pyramids?

What do they have in common?

http://www.learner.org/interactives/geometry/3d_pyramids.html

Look at these prisms

Write the shape of the two ends faces, then the number of faces and vertices in a table.

For a new shape - can you predict the number of faces and vertices?

Can you write the number of edges?

Chose all of them or the non- triangular shapes

Plenary

Report back to the class what you discovered

Starters

Times tables

Fill in as many numbers as they can in five minutes.

Choose six facts which you had difficulty remembering and learn them for homework.

Main Activity

Describe properties of 2D shapes including polygons.

Choose a shape.

Work in 2s to write at least five facts about it.

Share your results remember: regular/non-regular; number of vertices and sides; number of right angles/obtuse/acute angles; lines of symmetry and also its name.

Is a circle and oval, semi-circle polygons?

I have chosen a secret shape.

Ask me questions about it and guess whatn it is.

I will only answer 'Yes'

or 'No'

Activities

This is isometric paper.

Draw five equilateral triangles next to each other.

How many different shapes can you make?

Starter Place value - in four-digit numbers

In pairs make a 6 digit number

(use different coloured pencils)

Take it in turns to roll a 1 to 6 dice.

If you roll a digit which is in your

number, you score its value,

e.g. if you write 4326 and roll 3,

you score 300.

Describe your shape to your partner,

between you agree

What is different and what is the same.

Whose shape has at least one pair of parallel sides? What shapes have these?

Whose shape has at least one pair of perpendicular sides?

Whose shape has four right angles and is regular?

Let's explore these Quadrilaterals

http://www.mathsisfun.com/geometry/quadrilaterals-interactive.html

Classify quadrilaterals

Draw a quadrilateral (four straight sides) but it must be different from your neighbour’s.

WALT: Find properties of polygons including parallel and perpendicular sides

Ask children to join opposite vertices of their quadrilaterals and say that some children are going to investigate what is special about diagonals of different types ofquadrilateral, whereas other groups are going to investigate the angles. Be ready to report back in the plenary!

Join opposite vertices of their quadrilaterals. Some children are going to investigate what is special about diagonals of different types of quadrilateral, whereas other groups are going to investigate the angles.