Create your own Elephant Island provocation

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Challenge children to design and build their own Elephant Islands.

Early Learning Goal links

  • Mathematics ELG: Numerical Patterns
  • Understanding the World ELG: Past and Present
  • Understanding the World ELG: People, Culture and Communities
  • Understanding the World ELG: The Natural World
  • Expressive Arts and Design ELG: Creating with Materials
Child showing a completed junk model made of tubes and boxes.

Download progression document

Includes statements from Development Matters (birth to age five) and the relevant ELGs in full, for the Create your own island provocation

Characteristics of effective learning

Play, Be, C Units provide enabling environments with teaching and support from adults. Reflecting on the characteristics of effective teaching and learning, children will have opportunity to learn and develop by:

  • Playing and exploring – children investigate and experience things, and ‘have a go’.
  • Active learning – children concentrate and keep on trying if they encounter difficulties and enjoy achievements.
  • Creating and thinking critically – children have and develop their own ideas, make links between ideas, and develop strategies for doing things.

Early Years Foundation Stage Statutory Framework: accessed November 2024. Available under the Open Government Licence v3.0.

What you will need

  • A variety of construction materials – junk modelling, blocks, bricks or whichever construction materials you usually have available in your setting
  • Paper and pencils or pens
  • The civil engineer poster

Duration

  • 10  to 15 minutes

STEM vocabulary to introduce

Build, create, fasten, balance, heavy, light, stable, unstable, wobbly, structure, tie, stick, join, big, bigger, small, smaller, large, larger, tall, taller, short, shorter, wide, wider, narrow, narrower, heavier, lighter

What to do – step 1

Tell the children that they are going to be creative like civil engineers and make their own Elephant Islands. Show children pictures of the first Elephant Island on pages 29/30.

You could ask:

  • Which parts of Elephant Island do you really like?
  • Why do you like that part?
  • Is that part useful or important? Why do you think they need that on Elephant is land?
  • What would you want to have on your Elephant Island?
  • What would you need on your Elephant Island?
  • Where do you like to go to play? Do you like the climbing frame/construction area/water play?
  • Would you like a slide/swimming pool/sand pit?
  • What do you have in your home that you would like on your Elephant Island?
  • Which materials do you think you could use to create that?

Step 2 – creating the models

Talk to the children about their designs and ask them to explain to you what they have made. You could ask:

  • What is this part of your model?
  • What does it do?
  • Can it move?
  • Why did you put that there?
  • What is your favourite part of your model?
  • Why do you like that part best?
  • What else could you put on your model next time?
  • Was there anything difficult/hard to build or draw?
  • Why do you think that was difficult?
  • Which were the easiest bit to build? Why?
Model made of a variety of shapes of wooden blocks.

Remember to refer to the children as civil engineers and praise them for using the attributes. You could say things like:

“You have been creative like a civil engineer when you designed and built your model.”

The science of civil engineering

We have put together some useful information about the science of civil engineering to accompany this activity. Don’t worry, this is for your information only and to help you answer any questions children may have. We don’t expect you to explain this to the children in your setting!

Why do some structures topple over?

The centre of gravity of an object is the point that an object’s weight will balance around. Imagine balancing a ruler on the end of your finger without it falling off – your finger is in line with the centre of gravity. If you place the book or ruler onto a table with the centre of gravity off the edge of the table, it will fall. For symmetrical solid objects, the centre of gravity is in the middle of the object.

If a tower is built upright on flat ground, the centre of gravity is directly above the centre point of the base so the tower is very stable.

Diagram comparing the position of the centre of gravity of a rectangle with its long edge on the ground and its short edge on the ground.

If a tower is built on sloping ground, the centre of gravity is no longer above the centre of the base and the tower will be more unstable.

If blocks are stacked unevenly their centre of gravity will not be above the centre of the base and they are more likely to fall.

The higher you stack blocks, the higher the centre of gravity becomes. A 4 block tower will have its centre of gravity at 2 blocks, a 10 story tower will have its centre of gravity at 5 blocks. The higher the centre of gravity, the easier it is to tip it so that it is no longer directly above the base and it will tip.

Diagram of a rectangular brick on a slope showing the centre of gravity

Why does building a wider base help us build bigger islands?

Objects with a wide base are more stable than objects with a narrow base. This is because it’s more likely that the centre of gravity will be directly above the base of the object. Blocks need to be stacked so their centre of gravity is above their base in order not to fall. If you put a cuboid shaped block on the floor horizontally, has a wide base relative to its height so it won’t tip over if you push on its side with your finger. It has a low centre of gravity. If you stand the same block vertically on one end the base is now narrower compared to its height and it has a higher centre of gravity. If you push the block near the top, it will probably fall over.

A thin tower of wooden bricks and a label showing the position of the centre of gravity about half-way up the bricks.

Objects with a wide base are more stable than objects with a narrow base. This is because it’s more likely that the centre of gravity will be directly above the base of the object. Blocks need to be stacked so their centre of gravity is above their base in order not to fall. If you put a cuboid shaped block on the floor horizontally, has a wide base relative to its height so it won’t tip over if you push on its side with your finger. It has a low centre of gravity. If you stand the same block vertically on one end the base is now narrower compared to its height and it has a higher centre of gravity. If you push the block near the top, it will probably fall over.

Toy elephant standing on a wobbly tower of bricks.

How do we balance the different blocks on our islands?

When we add the new blocks to our structures, we are changing the position of the centre of gravity of our structure. If we choose to put a heavy object at the top of a tower of blocks, the centre of gravity is higher up. This makes it easier for the tower to tip because that the centre of gravity is no longer above its base, and the tower falls down. If we place heavier objects lower down on our structures and lighter objects towards the top,  the centre of gravity is lower and the structure is less likely to topple.

Where are the best places to attach different parts to our islands?

When we add new parts to our structures, we are changing the position of the centre of gravity of our structure. If we choose to put a heavy object at the top of a structure, the centre of gravity is higher up. This makes it easier for the structure to tip because that the centre of gravity is no longer above its base, and the structure falls down. If we place heavier objects lower down on our structures and lighter objects towards the top,  the centre of gravity is lower and the structure is less likely to topple.

Why does fastening our structures together make them stronger?

Fasteners ensure that materials are securely joined together. They help structures withstand the loads and forces placed upon them.

Fasteners reinforce and strengthen connections between the parts of the structure. They providing additional support and ensure that the structure is more stable over time. Examples of fasteners include nails, nuts and bolts, screws, rivets and anchors.

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