Using a clock for estimating angles

First slide is a ‘poster’ I put up in the classroom so students can estimate angles using an analogue clock.
The second slide features smaller, blank versions to print off for students to have in their books.

I have found that using a clock as a way to estimate angles in multiples of 30 has led to students becoming much better at estimating angles.

Updated to include a worksheet where students have to draw certain “clock angles” in different ways.