Instructions:

In this interactive application, you can select for a bricklayer and his apprentice the amount of time that it takes each one to lay a brick. Based on the fractional part of an hour that you select, the application will calculate the number of bricks that each one could lay if he were to work for an entire hour. By adding these rates, the application also calculates the number of bricks that could be laid in an hour if the bricklayer and his apprentice were to work simultaneously.

For a visual representation of this, insert check marks, via a click of your mouse, in the boxes next to "bricklayer" and "apprentice." After doing so, click "run." If you’d like to experience the green-shirted bricklayer working without his apprentice, or the blue-shirted apprentice working without his mentor, simply deselect the one in which you’re not interested before running the application with the one in which you are. Regardless of what you decide, enjoy the exercise, and be sure to check out number 101 on page 50 of your text!

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