We recently completed our unit, Comparing and Scaling, where we explored how ratios and proportions can be used to compare measured quantities. We considered, when is it best to use percents, rates, ratios, and proportions to make comparisons - as opposed to using addition and subtraction relationships? We developed strategies for writing and solving proportions all the while making the connection to past strategies: ratio/rate tables, equivalent fractions, tape diagrams, scaling up and down. In applying our skills, we used unit rates to compare costs. We extended our work to percents of a whole, imagining how much we would make as salespeople at a store making commission, researching the markups on basic items (water, clothing, movie theatre popcorn, etc.).
We even used our knowledge to determine, "How do we measure with mathematics how dangerous texting and driving is?" This task really shocked students! We timed them typing a basic response to a text message question and applied their rate (words per second) to measure the distance one would drive at that rate. We also analyzed statistics regarding teenager-related vs. adult-related car accidents to figure out if teenagers were truly more dangerous drivers than adults. I can definitely say that our students realize how dangerous texting and driving is - what a good message a few years before they start driving themselves! This is a bunch that loves to apply what they are learning to solve real-world problems, and I continue to embrace these opportunities in class to make their learning relevant. They tackle any challenge I bring their way, and they respond with wonderment and awe, one of the habits we have been working on as a school. If you are looking for ways to bring real-world application into your work with your child at home, don't forget to check out my website on classroom central. Happy weekend!
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