# Halloween Pop-Up Spiders and 3D Shapes

22 Oct

Our next idea for a mathematical Halloween activity involves 3D shapes. Using a pop-up dodecahedron pupils can review the properties of 3D shapes such as vertices, faces and edges and have a great pop-up spider to take home.

Where’s the maths

• Nets of 3D shapes
• Properties of shapes; faces, edges and vertices
• Planes of symmetry
• Angle properties of each face of the dodecahedron

You will need

• Template of a dodecahedron, download one from Sen teacher website from here.
• Some black card
• Elastic bands
• Black pipe cleaners for the legs
• Elastic bands for pop-up ability
• Stick on eyes

How

Download a template of a dodecahedron from here the SEN website and use as a template.

Cut out the dodecahedron on black card but separate into two pieces like this;

Now test the pop-up ability of your spider by following this quick video;

Then decorate your spiders with eyes and legs made from pipe cleaners! Alternatively make a normal 3D Dodecahedron to make a spider that does not pop-up!

We like to hear how the ideas worked for you and would love to see a picture of any spiders made by your class!

Check this out made by @jonsmcest!

Get in touch @numberloving and check out our free and premium resources in our TES NumberLoving Store.

### 2 Responses to “Halloween Pop-Up Spiders and 3D Shapes”

1. Barbara October 22, 2012 at 4:04 pm #

Love your spider! Will be making & posting photos shortly! 🙂

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• Sharon Derbyshire October 22, 2012 at 8:56 pm #

Fantastic! I got some black glitter spray from the works to give the spiders sparkle! Forgot to take photos before pupils took home!

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