12 | Using the | Number Sense |
Assessment Suggestions
The average length of the small intestine of an ostrich is 1372cm (45 ft.). Three ostriches have heights of 314cm (10 ft. 3 in.), 308cm (10 ft. 1 in.), and 299cm (9 ft. 8 in). Have students find the ratio of the ostriches’ average height to average intestine length.
Extensions
Investigate the length of the intestine for different animals. Compare the ratio of the height to intestine length to the ratio you discovered above.
Herbivores length of intestines = | 4 times body length or 12 |
| times length of torso. |
Carnivores length of intestines = | body length or 6 times |
| length of torso. |
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How many average students would it take to make the length of a weasel’s intestine?
How many teachers would it take to make the length of the intestine?
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