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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.
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Featured ActivityNewsletter The Transum Newsletter for February 2026 has just been published. Click on the image above to read about the latest developments on this site and try to solve the puzzle of the month. You can read the newsletter online or listen to it by downloading the podcast. |
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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Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments. |
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Recently UpdatedMissing Terms Can you work out which numbers are missing from these number sequences? So far this activity has been accessed 28929 times and 3854 Transum Trophies have been awarded for completing it. |
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Idan Tal, Twitter
Tuesday, April 16, 2019