Practical ideas: 'I Spy!'
We are all familair with the game of 'I Spy' when played with the beginning letter of the object, but this game can be played really effectively to encourage looking at and learning the properties of shapes.
Try 'I Spy!' with either 2D or 3D shapes, with questions such as:
‘I spy with my little eye something that looks like a circle.’
‘I spy with my little eye something that has 3 sides.’
Practical ideas: I Spy