SKU: 65085089665

Make Trigonometry

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Description

Make TrigonometryTrigonometry has 2000 year old roots in everyday useful endeavors, like finding the size of an object too big or far away to measure directly, or navigating from Point A to Point B. However, it is often taught very theoretically, with an emphasis on abstractions. Make: Trigonometry uses 3D printable models and readily available physical objects like wire and cardboard tubes to develop intuition about concepts in trigonometry and basic analytic

Trigonometry has 2000-year-old roots in everyday useful endeavors, like finding the size of an object too big or far away to measure directly, or navigating from Point A to Point B. However, it is often taught very theoretically, with an emphasis on abstractions. Make: Trigonometry uses 3D printable models and readily-available physical objects like wire and cardboard tubes to develop intuition about concepts in trigonometry and basic analytic geometry. Readers will imagine the thought process of the people who invented these mathematical concepts, and can try out "math experiments" to see for themselves how ingenious ancient navigators and surveyors really were.The analytic geometry part of the book links equations to many of these intuitive concepts, which we explore through in-depth explanations of manipulative models of conic sections. This book is aimed at high school students who might be in Algebra II or Pre-Calculus. It shows the geometrical and practical sides of these topics that otherwise can drown in their own algebra.Make: Trigonometry builds on the basics of the authors' earlier book, Make: Geometry, and is intended as a bridge from that book to their Make: Calculus book. The user can read this book and understand the concepts from the photographs of 3D printable models alone. However, since many models are puzzle-like, we encourage the reader to print the models on any consumer-grade filament based 3D printer. The models are available for download in a freely-available open source repository. They were created in the free program OpenSCAD, and can be 3D printed or modified the student in OpenSCAD to learn a little coding along the way.About the AuthorJoan Horvath is the co-founder of Nonscriptum, a consulting and training firm that teaches educators and scientists how to use maker tech. She is a recovering rocket scientist who spent 16 years at JPL and then another 20 as an entrepreneur. Joan is an alumna of MIT, and the co-author of Make: Geometry and Make: Calculus. She lives in Southern California.Rich Cameron is the co-founder of Nonscriptum, a consulting and training firm that teaches educators and scientists how to use maker tech. He is an open-source 3D printer hacker who designed the RepRap Wallace and Bukito 3D printers, and the co-author of Make: Geometry and Make: Calculus. He lives in Southern California.

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SKU: 65085089665

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HF
Belleville, US
★★★★★ 4
Make sure you're not allergic to latex
Size: Queen (Mid Loft), Number of Items: 1
This pillow is so soft and bouncy! After using it for a couple of nights, I felt that it wasn't high enough for me, as I'm a side sleeper. So I started using it with another thin pillow underneath it. That worked fine and I was happy with it until I started developing itchy skin on my neck, scalp and ears! Now, to be fair, this isn't the pillow's fault! I just didn't know I was allergic to latex! I unfortunately had to return it.
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Reviewed in the United States on April 10, 2026
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Linda Pearl
Omaha, US
★★★★★ 5
Great Pillow
Size: Queen (Mid Loft), Number of Items: 1
My husband bought me this pillow - I loved it so much I bought a second one! It is so comfortable and keeps its shape. I would buy again!
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Reviewed in the United States on May 31, 2026
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Susan Wolfe Akers
Belleville, US
★★★★★ 3
Not recommended, not great quality.
Size: Queen (Mid Loft), Number of Items: 1, Size: Queen (Mid Loft), Number of Items: 1
Very disappointed after reading decent reviews. The pillow itself doesn't have a a well defined shape and is VERY SOFT AND MARSHMALLOW-ish. The pillow cover is cotton knit and isn't thin but doesn't help the pillow to keep its shape. It's approximately 5.5 to 6 inches high.
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Reviewed in the United States on January 4, 2026
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Amazon Customer
Bozeman, US
★★★★★ 5
The Best
Size: Queen (Mid Loft), Number of Items: 1
So comfortable. I love it. It’s firm and holds its shape, yet it cradles your head, and its soft. It’s wonderful.
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Reviewed in the United States on December 3, 2025
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AZBO
Belleville, US
★★★★★ 5
Medium soft
Size: Queen (Mid Loft), Number of Items: 1
Great for side sleeping
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Reviewed in the United States on January 28, 2026

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