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Left Right

Topic: Investigations

Although left-handers currently form about 11 percent of the population, studies by scientists showed that only about 3 percent of those born in 1900 were left-handed. This evidence has been interpreted from a series of films made between 1897 and 1913. Researchers identified left-handed people from the arm they used to wave at the camera.

In this activity children will investigate whether there are more left-handed people in the population now than 100 years ago. They will decide which actions to observe to determine whether a person is right or left-handed. They will tally the number of left-handers in their sample and compare it to that of 3 in 100.

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