Angles and Twelfths

We can use a fraction circle divided in twelfths to measure lots of different angles by seeing how many twelfths fit into the angle.

When you press the "show me how" button, you can see how the fraction circle can be compared to the angle. The part of the circle that matches the angle will be entered into the "twelfth" text box.

Click "my turn" if you want to try matching the same angle again. Click "next" to try a new angle.

Angles

1. Angles and Fraction Circles
2. Angles and Twelfths
3. Angles and Clock
4. Fraction Circles and Clock
5. Angles and Protractor
6. Supplementary Angles Add Up to 180
7. Half Circle Protractor
8. Measure Supplementary Angles
9. How to Name Angles
10. Supplementary Angle Puzzles
11. Connect the Dots: Angles
12. Complementary Angle Puzzles
13. Angle Bisector Puzzles
14. Vertical Angle Puzzles
15. Triangle Tiling
16. Guess the Angle

Can't see the activity?
	You might need to download and install the MicroWorlds Web Player plugin. If you installed MicroWorlds Web Player and still cannot see the activity, check the MicroWorlds Web Player Troubleshooting page.

This work is licensed under a Creative Commons Attribution 3.0 Unported License.