Headline Story
Estimation, #7
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Introduction
Read the Headline Story to the students. Encourage them to think of interesting statements to make about Jason’s and Rosa’s comments.
Headline Story
Jason said that a gallon of milk weighed 8 pounds. Rosa said that a gallon of milk weighed 3.5 kilograms.
Possible student responses
- Since 1 kilogram is a little more than 2 pounds, 3.5 kilograms and 8 pounds are pretty close (though not exactly the same.).
- Pounds and kilograms are both units for measuring weight.
- Milk weighs about the same as water, and a liter of water weighs 1 kilogram. Since there are a little less than 4 liters in a gallon, the weight of 3.5 kilograms for a gallon of milk makes sense.
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