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posted by Fnord666 on Sunday December 25 2016, @09:36PM   Printer-friendly
from the do-you-speak-math? dept.

When one of my daughters was in high school, a student in her math class stood up in disgust and exclaimed "Why do we have to learn math for 12 years when we are never going to use any of it?" You might think that as a mathematics educator I would find this statement upsetting. Instead, the student's question got me thinking about the fact that she saw no connection between the mathematics and her future, even though her curriculum was full of story problems that at the time I would have called "real-world problems." Every mathematician has probably encountered an "I'm not fond of math" confession. Choose any subject and you can probably find someone who dislikes it or does not care to practice it. But when I have talked with strangers about my experience teaching English and shop and history and physical education, I rarely (if ever) have encountered a negative response. Because math can be a pathway to many careers, the problem seems important to address.

Mathematics in its purest forms has incredible power and beauty. New mathematics is key to innovations in most science, technology, engineering and mathematics-related (STEM) fields. Often at the time new mathematics is invented, we don't yet know how it will relate to other ideas and have impact in the world. Mathematical modelers use ideas from mathematics (as well as computational algorithms and techniques from statistics and operations research) to tackle big, messy, real problems. The models often optimize a limited resource such as time, money, energy, distance, safety, or health. But rather than finding a perfect answer, the solutions are "good enough" for the real-life requirements. These problems can be motivating for mathematics students, who can relate to mathematics that solves problems that are important to them.

To solve modeling problems, mathematicians make assumptions, choose a mathematical approach, get a solution, assess the solution for usefulness and accuracy, and then rework and adjust the model as needed until it provides an accurate and predictive enough understanding of the situation. Communicating the model and its implications in a clear, compelling way can be as critical to a model's success as the solution itself. Even very young students can engage in mathematical modeling. For example, you could ask students of any age how to decide which food to choose at the cafeteria and then mathematize that decision-making process by choosing what characteristics of the food are important and then rating the foods in the cafeteria by those standards. The National Council of Teachers of Mathematics (NCTM) is providing leadership in communicating to teachers, students, and parents what mathematical modeling looks like in K–12 levels. The 2015 Focus issue of NCTM's Mathematics Teaching in the Middle School will be about mathematical modeling and the 2016 Annual Perspectives in Mathematics Education will also focus on the topic.


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  • (Score: 2) by stretch611 on Monday December 26 2016, @06:53AM

    by stretch611 (6199) on Monday December 26 2016, @06:53AM (#445990)

    I don't agree that only the basics are needed for most people. And not just algebra and stats as some people have mentioned.

    Believe it or not, even Geometry has uses for many people.

    When you are a painter you use geometry to determine how much paint you need. You need to determine the area of the walls you are painting... as well as removing the piece of the wall that has a window. So help you if their is anything oddly shaped like a bay window or anything circular (OMG!!! pi!!!) You may suggest that it doesn't matter if they go over... but if you see the price of good paint in the hardware store, a gallon difference can be the difference between you or a competitor bidding on the job getting it. (also, custom paint colors can not be returned, and you want them all to be mixed in the same batch to make sure the color is even.)

    Architects, artists, and practically any type of design people need to know it as well. You need to calculate the cost of materials on area and sometimes even volume of the items you design.

    Even some gas station attendants need to know some geometry. Back when I worked for a gas station while in high school, I needed to measure the amount of gas left in the storage tanks underground. It was measured by sticking a wooden ruler into the tank and seeing how many inches of gas was in there. You can't determine the volume of gas without knowing how to calculate the volume of a cylinder. Admittedly, many places do this with electronic equipment and computers now... But, there are many smaller older mom and pop stations throughout the US that do not have the volume to completely modernize.

    Not to mention how many times a use for the pythagorean theorem comes up...

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