First, you take one of your A4 pieces of card. This piece of card should be folded in half along the longest side of the rectangle.

You then place it in the landscape position with the folded edge of the card at the bottom.

Starting at the bottom left-hand corner you need to draw a curve up to the top right-hand corner. (This is going to form the beak so a good round curve would be better here)

Once this has been done then you should cut along the line you have drawn. (If the children get this right then their beak should still be in one part)

Next, you need to secure this curved edge somehow – I used a staple and placed staples all the way down to the bottom of the beak. You could use sellotape or masking tape but I felt the staples would be more secure here. (Note the back edge of the beak where it is going to join the mask should not be touched at this point.)

Then instruct the children to place two fingers inside their beak. Model how they should then push down their fingers against the top of the table. This should create a 3D beak now but it will spring back into place once you let go.

The children should fold an edge along the line they have just created all the way down to the bottom of the beak.

If you tackle one side at a time this will be easier – staple along each fold they have created so the beak stays in the 3D shape. It is not necessary to go along the whole length; maybe 3/4 will do here.

Then do the same for the other side. You should now have three edges that have staples in and if you feel you want to staple the bottom of the beak then this will create a good effect too but it is not essential.