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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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Recently UpdatedDecimal Sequences Recognise and continue sequences that involve decimals. So far this activity has been accessed 47 times and only 1 person has earned a Transum Trophy for completing it. |
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Idan Tal, Twitter
Tuesday, April 16, 2019