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Description
Problem Solving Through Recreational MathematicsHistorically, many of the most important mathematical concepts arose from problems that were recreational in origin. This book takes advantage of that fact, using recreational mathematics problems, puzzles and games to teach students how to think critically. Encouraging active participation rather than just observation, the book focuses less on mathematical results than on how these results can be applied to thinking about problems and solving them.
Historically, many of the most important mathematical concepts arose from problems that were recreational in origin. This book takes advantage of that fact, using recreational mathematics -- problems, puzzles and games -- to teach students how to think critically. Encouraging active participation rather than just observation, the book focuses less on mathematical results than on how these results can be applied to thinking about problems and solving them.Each chapter contains a diverse array of problems in such areas as logic, number and graph theory, two-player games of strategy, solitaire games and puzzles, and much more. Sample problems (solved in the text) whet readers' appetites and motivate discussions; practice problems solidify their grasp of mathematical ideas; and exercises challenge them, fostering problem-solving ability. Appendixes contain information on basic algebraic techniques and mathematical inductions, and other helpful addenda include hints and solutions, plus answers to selected problems. An extensive appendix on probability is new to this Dover edition. Free solutions manual available for download at the Dover website.
Binding Type: Paperback
Publisher: Dover Publications
Published: 05/27/1999
ISBN: 9780486409177
Pages: 480
Weight: 1.50lbs
Size: 9.18h x 6.50w x 0.92d
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Product Reviews
★★★★★ 5
Perfect for Summer
Color: Pink
I ordered this portable fan for a trip to the Caribbean and it was perfect. It definitely kept me cool during the heat. It's small and lightweight and it has various settings for different levels of flow. It doesn't oscillate but that's fine with me. I've brought it with me on multiple trips so I'd say it's reliable and it has great power too. The blush pink color is so cute and feminine I love it!
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Reviewed in the United States on May 9, 2026
★★★★★ 4
Compact Fan That Actually Works Well
Color: Black
This ended up being a pretty solid little fan. The biggest strength is how compact and portable it is while still putting out a decent amount of airflow. Easy to throw in a bag, keep while traveling, or use outdoors without it feeling bulky.
Build quality feels decent for the price. The plastic body is lightweight but doesn’t feel especially cheap or fragile. It feels designed for portability first, which is exactly what I wanted.
One thing I did appreciate was that the blades don’t hurt if they accidentally hit your hand or finger. Small detail, but it makes the fan feel less annoying to use and probably safer around kids as well.
The flashlight feature is honestly whatever for me. Nice that it exists, but not something I personally needed or would buy it for. The fan itself is the real value here.
Pros
* Compact and easy to carry
* Good airflow for the size
* Lightweight but reasonably well made
* Fan blades are safe and don’t hurt on contact
* Convenient for travel or outdoor use
Cons
* Flashlight feature feels unnecessary
* Plastic construction is functional, not premium
* Not powerful enough to replace a larger fan
Final Thoughts
Overall, this is a very practical portable fan that does exactly what it’s supposed to do. Compact, effective, and easy to keep with you. The extra features aren’t a huge selling point for me, but the core fan functionality works well enough that I’d still recommend it.
Who It’s For
Great for travel, theme parks, outdoor events, sports games, commuting, or anyone wanting a compact personal fan that’s easy to carry around.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Great product
Color: Pink
Fit in my purse and has a good battery life for as much as I use it. Enjoy that there’s two different air flows.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Perfect Wind Speeds, Size, Weight, and Price Here on Amazon Prime
Color: Pink
My wife uses this little fan when she experiences one of her occasional hot flashes. And she said it works well for these times. She also uses it when we are at an outdoor market or park when the temperature rises along with the humidity thus providing a little respite from the these conditions.
She likes the size, weight, the included lanyard, and the fact that it is so quite when in use. A full charge seems to last for a two to three hours depending on the selected speed of the fan itself.
There are other more powerful portable handheld fans available, however, this one seems to be the perfect compromise between air speeds, size, weight, and price.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
I have 3!
Color: Pink
I love this fan! The high speed will cool you down quickly! It's great for church! ballgames! Beach! Hotflashes!!! It's very quite! You can hold it or put on a table and position it where you want. I have one for work, one at home and one in my purse. The oldest is about 4 years old and works as good as day one.
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Reviewed in the United States on May 10, 2026