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Transcript of 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
Find lines of symmetry.
In Pairs draw as many shapes as you can in three minutes with only one line of symmetry.
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,)
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?
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
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
Can you name theses shapes?
Have a look at these prisims.
What do prisims have in common?
Have a look at these pyramids?
What do they have in common?
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
Report back to the class what you discovered
Fill in as many numbers as they can in five minutes.
Choose six facts which you had difficulty remembering and learn them for homework.
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'
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
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.