Click on a picture above for a large version and interactive model or show a theorem at Random.
When you think that the angle theorems are understood head for an Angle Activity.


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. Find out about the latests developments on this website by signing up for a Transum Subscription. You will receive a regular newsletter and have access to the answers to most of the puzzles and activities on this site. 


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Recently UpdatedRatioA self marking exercise on using ratio notation, reducing a ratio to its simplest form and dividing a given quantity into a number of parts in proportion to a given ratio. So far this activity has been accessed 59648 times and 22985 Transum Trophies have been awarded for completing it. 

Idan Tal, Twitter
Tuesday, April 16, 2019