I think it would be easier to students if we can print an extra supporting document for our students to help them remember the shapes and their names.
Click HERE to download
Go Teach Maths has a very nice animated powerpoint to help students to visual the cross section of a prism.
Click HERE for a shortcut.
There is a common approach in Wellacre to work out the area of a circle.
I have created an animated Powerpoint to help students visualise the relationship between 'r squared' and pi.
Click HERE for the Powerpoint.