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Estimating tasks

Time:	3 min.
Recommended age:	from 10
Size of group:	it doesn't matter
Time for preparation:	approx. 5-10 minutes
Material:	Alternative 1: an empty jam jar, estimating materials (peas, matches, money etc.). Alternative 2: stones and scales. Alternative3: Water, tub and measuring beaker. Alternative 4: String

Game description

The following estimation exercises are easy to do: Matches or peas, coins or glass marbles are filled into an empty jam jar with a lid. The group must decide on the number of objects found in the jar. The interesting thing is how the group makes their decision.

Option

The group must guess the weight of a stone, the amount of water in a tub or the length of a piece of string

Judging

The closer the group comes to the correct answer, the more points are awarded. The best team gets the most points.