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## Halloween Pop-Up Spiders and 3D Shapes

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.

## Tick or Trash

Tick or Trash is an idea shared by  Lisa-Marie Doyle, a colleague I worked with in Knowsley, now working in Crewe. From Lisa’s idea Number Loving have produced a number of tick or trash worksheets, ready for free download.

With the questions placed in the middle they’ve been answered by two characters,  one is correct and one is wrong. Pupils must decide for each whose answer to tick and whose to trash. These are ideal for quick starter, plenary or a topic review. Also don’t miss the great opportunity to engage pupils in spotting and describing the mistake or discussing common misconceptions.

All tick and trash resources can be downloaded from our TES store check it out here!

We welcome all feedback and look forward to hearing how tick or trash worked for you!Get in touch @numberloving and check out our free and premium resources in our TES NumberLoving Store.