Compare two or more areas by informal means, eg using tiles or a square-centimetre grid overlay

1. Ordering By Area - order 4 objects by area, using 1 square centimetre grid
2. Ordering By Area - order 5 objects by area, using 1 square centimetre grid
3. Ordering By Area - order 4 objects by area, using 1 square unit grid
4. Acknowledging Area - about 5 square centimetres
5. Stepping Stones - adding areas, using grid