Introduction
A simple, effective and enjoyable way to measure the area of irregular shapes, such as leaves, by tracing out the shape and using graph paper.
Tools
Parts


Lay the leaf on the graph sheet.

Trace its outline using Pen/Pencil.



Use Pen/Pencil and number the full squares inside the leaf trace.

Use an alternative color to number the partial squares inside the leaf trace.



Multiply the number of full squares by 1 cm2 and partial squares by 0.5 cm2 and add them together.

Repeat the above steps for any number of leaves.
Vishal:
(1) Reduce the text in the steps. You may replace the first 5 steps by: "Multiply number of full squares by 1 cm2 and partial squares by 0,5 cm2 and add them together...."
(2) You may want to mention that multiplying partial squares by 0.5 cm2 is not accurate but, since the errors average out you get a good estimate of the leaf's area.
Done.


Vishal: Not sure if you will get more accurate results by doing it on bigger squares graph. It's a good variant though.