Wednesday, October 12, 2011

Alexia Proportion Post

Task 1
Ratio. A comparison of quantities that have the same units.

Rate. A comparison of two quantities measured in different units.

Proportion. An equation which states that two ratios are equal.

Task 2
1. 5 hours to travel 360 miles is about _____ mph.
hours 5 (÷5) 1
    _____ _____ = _____
miles 360 (÷5) 75mph

    2. As a playgroup worker,if I increase the amount of apple juice I am serving at the playgroup from 25 ml to 100 ml, how much should I increase the the orange juice to, to keep the quantities in the same proportion? The orange juice is 50 ml to start with.
    apple juice 25ml x4 100ml
    _____ _____= _____
    orange juice 50ml x4 200ml
Task 3
What are three ways you can prove that equivalent ratio statements are true ?

1. horizontal
2. strategy
3. vertical

Task 4

Task 5
1. Does this seem fair ? I do not think it is fair.

2. With what you know about proportion look and read what is in the image above. Does it seem just and fair ? Why have you made this choice ?
No its not fair because he took 3 billion $$ that's a lot
3. What would you have done if you were the judge ?
I would have gave him at least 3years of jail.

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