SKU: 84267314845

Sharpen Everyday Mental/Think Skill Math Problem Solving ..

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Description

Sharpen Everyday Mental/Think Skill Math Problem Solving ..Mathematics is a subject taught from kindergarten through to high school, and yet it is the one subject that most adults are almost proud to admit to not having been very good at, and, therefore, tend to avoid it where they can. However, one of the key factors in mathematics is its ability to enable us to solve everyday problems. When we consider "the worst case scenario" of the situation, it is analogous to solving a mathematical problem by

Mathematics is a subject taught from kindergarten through to high school, and yet it is the one subject that most adults are almost proud to admit to not having been very good at, and, therefore, tend to avoid it where they can. However, one of the key factors in mathematics is its ability to enable us to solve everyday problems. When we consider "the worst-case scenario" of the situation, it is analogous to solving a mathematical problem by considering extremes. Or, we might consider the best path to take from point A to point B, where geometric relationships can be helpful. This book is intended to demonstrate a variety of neglected aspects of mathematics, in order to demonstrate the power and beauty of the field of mathematics beyond where most people, students, and teachers believe is possible.

 

The chapters of the book explore a multitude of topics: unusual arithmetic calculations and shortcuts, entertaining and instructional problem-solving strategies, unusual applications of algebra, and how geometry allows us to better appreciate physical relationships. Only a basic mathematical knowledge is needed to understand these topics and problems; however, the book also demonstrates that, armed with even this level of understanding, our mathematical skills far exceed what we learned at school! The final chapter is the most challenging, and explores a curious problem-solving technique.

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SKU: 84267314845

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4.0 ★★★★★
Based on 29 reviews
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Verified Purchase
Mike W
Dallas, US
★★★★★ 4
Three tiered design makes it a winner
Color: Beige
This umbrella is extremely easy to setup. It is lightweight and because of the three tier design it adds beautiful features to your back yard.
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Reviewed in the United States on May 14, 2026
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Verified Purchase
Lynn
Birmingham, US
★★★★★ 1
No customer service for product under warranty
Color: Beige
loved this umbrella for the 4 months we used it. did a lot of research to find an umbrella that would stand up to New England "breezes" -- this one was advertised as wind resistant; bought in June 2025, seemed very sturdy, really nice-looking, used on our patio (installed in the base the recommended base) through the summer; stored indoors for the winter; brought back onto patio a couple weeks ago. On a day with average wind a couple weeks ago, the tilt mechanism broke. Umbrella did not fall over, a gust of wind just forced the tilt mechanism to snap. Spent a lot of time trying to fix it, but it's permanently broken. It's less than a year old so still under warranty, as stated in the materials they sent with the umbrella. Same materials list the email to contact if there are any problems with the product. Have emailed the company, twice now, asking for a refund or replacement. Radio silence. Don't buy this unless you're ok with throwing it away after four or five months of use and being ignored by customer service.
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Reviewed in the United States on May 29, 2026
K
Verified Purchase
KNexus
Dallas, US
★★★★★ 3
Third time in 10 years nerding out on an Amazon patio umbrella on a budget...
Color: Navy Blue, Color: Navy Blue
Color: Beautiful, but the fabric is thinner than other options that are only ~$10 more. Tilt mechanism: Major reason for my 3:5 stars. It's plastic with a metal fastener through the middle. We won't be tilting this umbrella in any wind gust situations over 5mph. The warnings on the stickers and in the instructions make it clear this is a limitation, but it's not mentioned in the listing details. Quality | Value for money: Overall very mid. This is a nice 3-tiered umbrella at a near rock-bottom budget price for that class. I have found other mystery brand umbrellas on Amazon that have lasted for 5+ years, albeit with some (in my opinion) acceptable fading and rust. This umbrella leans hard into plastic everywhere except the fasteners. The ribs and pole are almost as thin as a few layers of beer cans pressed together. At least at the 10' and up diameter, this umbrella requires you to install equally flimsy-feeling extensions in order to get to 10', full sail. Final thoughts: This time around I chose price + delivery speed over quality, and I have a hunch I will be getting what I paid for. I doubt this umbrella lasts for more than 2 to 3 years without UV treatments and a very solid, heavy base.
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Reviewed in the United States on May 26, 2026
K
Verified Purchase
Kevin
Dallas, US
★★★★★ 5
Excellent Value.
Color: Forest Green, Color: Forest Green
Excellent value. Well made. Assembles in a few minutes. Note that the tilt control is the single click type. You push a button on the support column and tilt the umbrella until it picks in place. Venting design is helpful in keeping umbrella from tipping over in moderate wind. Fabric is a light synthetic. We chose green which we like.
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Reviewed in the United States on May 22, 2026
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Verified Purchase
Nicky
New York, US
★★★★★ 5
Love this umbrella!
Color: Lake Blue, Color: Lake Blue
I totally love my umbrella. The 10 foot size is perfect for the coverage I needed. The assembly was super easy. The Lake Blue color is more beautiful than the pictures displayed. UV coating is exactly what I need, after having skin cancer. It's also stable in light to moderate wind, thanks to the slits in each tiered layer, allowing wind to pass through. I've only had this umbrella a week, but am impressed at this point. It's much more cost effective than having either an awning or roof extension over my patio. $90 vs $8-20k! Highly recommended.
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Reviewed in the United States on April 25, 2026

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