If you want to explain to your children or your students, the proportions of planet Earth, especially the land to water and arable land than on land ... Take an apple! The apple is the planet Earth.
Cut it in 4: Put aside 3 / 4 and explain that they represent the oceans, seas and all inland waters. The remaining one-fourth is land. Now this fourth cut in two and a half by mettetene: it represents the portion of land that is inhospitable to humans, ie the poles, deserts, high mountain ...
The other half in your hand cut it into quarters and put them three shares once again by: these are the areas that can accommodate the man but they are not cultivated because it is too cold, too wet, too rocky or too poor soil to produce food ... in these three parts also understand the urbanized areas with public and private buildings, shopping centers, highways ... where the man lives and moves where nothing grows but edible.
What remains? Remains 1 / 32 the whole apple. Carefully peel this small piece of skin and waved the box in front of the audience: the tissue that is ground from which everything depends, the only portion of land under cultivation to provide food!
The idea is explained in English here . In this other page version photographed. But I have found through our Newsletter Free Homeschooling Ideas Julie Gilbert, whom I thank.
[I wrote Julie: Hi
,
Excellent - I am glad you enjoyed it. Your blog is really beautiful!
Thank you for the link.
best wishes, Julie ]
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