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Description
Vision in Elementary MathematicsHere is a presentation of elementary mathematics that anyone can appreciate, especially those with imagination. As the title suggests, the author's technique relies on visual elements, and his approach employs the most graphic and least "forbidding" aspects of mathematics. Most people, he observes, possess a direct vision that permits them to "see" only the smaller numbers; with the larger numbers, however, vision fails and mental chaos ensues. Sawyer
Here is a presentation of elementary mathematics that anyone can appreciate, especially those with imagination. As the title suggests, the author's technique relies on visual elements, and his approach employs the most graphic and least "forbidding" aspects of mathematics. Most people, he observes, possess a direct vision that permits them to "see" only the smaller numbers; with the larger numbers, however, vision fails and mental chaos ensues.Sawyer addresses this difficulty, speaking both for those who like recreational mathematics and for those who teach, suggesting a variety of methods used by many effective teachers -- techniques of visualizing, dramatizing, and analyzing numbers that attract and retain the attention and understanding of students. His topics, ranging from basic multiplication and division to algebra, encompass word problems, graphs, negative numbers, fractions, and many other practical applications of elementary mathematics.
A valuable resource for parents and teachers, this book will captivate any reader seeking an improved understanding of mathematics.
Binding Type: Paperback
Publisher: Dover Publications
Published: 01/27/2003
ISBN: 9780486425559
Pages: 368
Weight: 0.82lbs
Size: 8.56h x 5.32w x 0.76d
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4.7 ★★★★★
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★★★★★ 5
Perfect
Color: 7-in-1 Silver & Black/Beer Opener, Size: Rechargeable Set
Perfect!
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Reviewed in the United States on November 17, 2025
★★★★★ 5
Ease of use
Color: 7-in-1 Silver & Black/Beer Opener, Size: Rechargeable Set
Works great. Looks good on counter top. Easy to use. Long charge life. Bonus beer bottle opener!
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Reviewed in the United States on September 8, 2023
★★★★★ 1
Worked twice then died within 3 months
Color: 7-in-1 Silver & Black/Beer Opener, Size: Rechargeable Set
The set is nice, looks good, well organized. The features are simple and the main opener looks and feels sturdy. However, roughly half the corks just get torn and don’t extract. Had 3 or less successes with as many failures. We only drink a few bottles a month at most. Now the unit just completely stops almost as quickly as it starts. You can reverse the screw to get it out when it stops and the motor seems fine when not pressed against a bottle/cork. The way it stops almost immediately when fully charged and cool means it isn’t an overheating issue or weak battery issue from what I can tell. Very disappointed and wished I’d returned it the minute I had the first issue. I thought it might just be me not holding it firmly enough or needing to learn some trick, but it was definitely the unit going bad. Buyer beware.
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Reviewed in the United States on March 1, 2023
★★★★★ 5
Easy to operate.
Color: Black/Battery
Very easy to operate. I was a little confused on how it operated but all I had to do is sit it on top of the can and it operates by itself. When it is done, the lid can be removed or set on top of the can. It doesn't leave any sharp edges. I was using a hand held one but because I have arthritis in my wrist, it is worth the price easy enough for seniors or disabled
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Great, super efficient!
Color: Black/Battery
Love this. Bought it for my mom since she doesn’t have a lot of strength in her hands. Perfect. Kind of slow but gets it done haha.
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Reviewed in the United States on May 10, 2026
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