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Understands that the reasonableness of the result of a computation can be estimated from the inputs and operations.

Two Answers are Better than One

What powerful mathematical tool do you use everyday? If you have ever considered how much food you can eat and still leave room for dessert, or made a rough calculation of how long it will take to travel to school, you are using estimates to help guide and inform your decisions.

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Learning to Think Globally

There is a popular bumper sticker slogan which advises us to 'Think Globally, Act Locally'. But what does it really mean to 'think globally'? One meaning could be to try to estimate the global consequences of the things you do. Here is one way to go about this.

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Dream Job

Many people dream of becoming millionaires these days. In order to make this dream come true, people play the stock market, play the lottery, and appear on television game shows designed for this purpose. Counting on the stock market requires placing money at risk and playing the lottery involves playing against the odds. And honestly, the television programs place contestants in the risky position of looking foolish by missing an easy question in front of millions of viewers.

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