Angle Theorems

Theorem 1 Theorem 2 Theorem 3
Theorem 4 Theorem 5 Theorem 6
Theorem 7 Theorem 8 Theorem 9

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.

Featured Activity

Shunting Puzzles

Shunting Puzzles

These puzzles are Transum's versions of the shunting or switching puzzles made popular by train enthusiasts and logic puzzle solvers.

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.

Idan Tal, Twitter

Tuesday, April 16, 2019

Recently Updated

Percentages Quiz

Percentages Quiz

A multi-level quiz on finding percentages. The lower level questions can be done mentally while the highest level questions require a calculator. So far this activity has been accessed 172060 times and 41677 people have earned a Transum Trophy for completing it.

Apple

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