A collection of excellent free resources for demonstrating the various circle theorems:
Tim Devereux has created GeoGebra applets which allow exploration of the circle theorems. You can access each theorem from the menu on the left which includes a useful summary of all the theorems.
See also these excellent demonstrations.
From Nrich comes an interactive Geoboard and a selection of problems to introduce circle theorems. As with all Nrich resources teachers’ notes are included. See these on the Subtended Angles problem for example.
Reblogged this on Singapore Maths Tuition.
Here’s a proof that uses circle theorems:
Nice resources. Thank you for sharing Colleen.