Click on a picture above for a large version and interactive model or show a theorem at Random.

#### Proof of Circle Theorems

Arrange the stages of the proofs for the standard circle theorems in the correct order with this drag-and-drop activity.

The short web address is:

Transum.org/go/?to=provetheorem

#### Circle Theorem Pairs

A pairs game based around ten theorems about the angles made with chords, radii and tangents of circles.

The short web address is:

Transum.org/go/?to=circletheorempairs

#### Circle Theorem Worksheet

One page of ready-drawn circles for pupils to draw their own diagrams followed by two pages of questions.

The short web address is:

Transum.org/go/?to=circletheoremworksheet

#### Circle Theorems Exercise

Show that you understand the circle theorems with this self marking exercise of traditional circle angle questions.

The short web address is:

Transum.org/go/?to=circleangles

There are also Circle Theorems Pairs games, a Circle Theorems Worksheet and a Circle Theorems Online Exercise available.

#### Nim

A very old game but one which involves mathematical based strategies. Take turns with the computer to remove items from the piles. You can remove as many items from the same row as you like. Whoever removes the last item is the winner.

This is a Shine+Write visual aid designed to be projected onto a whiteboard for whole class exposition.

You can find other popular visual aids on our Shine+Write page.

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#### Know Your Place

Without a calculator perform some calculations requiring a knowledge of place value. So far this activity has been accessed 9708 times and 106 people have earned a Transum Trophy for completing it.

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