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All the challenges in this entertaining puzzle book are the same. Fold the corner of the paper to a given dot and find the folded area. A small move of the target dot can drastically change the logic needed to find the solution to the challenge. The problems become increasingly complex as the book progresses, with possible solutions involving Pythagoras' and similar triangles as well as trigonometry and algebra. However, insights learnt from earlier challenges can help with those that follow. If at any point the challenge becomes too great, the answers can always be found by measurement with a ruler and directly calculating the area. The book encourages curiosity, a 'find out what you can' approach that creates interesting and varied solution strategies. The aim is that deep thinking and geometrical reasoning can come out of exploring and discussing the paper folds. The challenges are
Podpořte zdravý vývoj všech členů rodiny a vybírejte z velké nabídky hraček pro děti. Bavte se s přáteli, vyplňte svým seniorům volný čas. Hračka je často splněním dětského snu dospělého.
Kreativní, interaktivní, didaktické nebo vzdělávací hry a hračky jsou tou nejlepší přípravou na budoucnost vašich dětí. Umožněte dětem soutěžit a prosadit se v kolektivu.
All the challenges in this entertaining puzzle book are the same. Fold the corner of the paper to a given dot and find the folded area. A small move of the target dot can drastically change the logic needed to find the solution to the challenge. The problems become increasingly complex as the book
Explore the reaches of your imagination by combining art, craft, and mathematics to create the age-old geometric form of the polyhedra. More than 50 projects use just one center point to create shapes that are folded symmetrically and build upon each other. With easy-to-follow, step-by-step
Find out More Origami with Explanations: Fun with Folding and MathOrigami, paper folding, originated hundreds of years ago in China and Japan, with independent discovery and activity across the world. The most familiar origami models are the crane and the flapping bird. This book will introduce you
Origami, the art of paper folding, has a rich mathematical theory. Early investigations go back to at least the 1930s, but the twenty-first century has seen a remarkable blossoming of the mathematics of folding. Besides its use in describing origami and designing new models, it is also finding
A breakthrough paper-folding book for kids--paper airplanes meet Origami meets Pokemon. Papertoys, the Internet phenomenon that's hot among graphic designers and illustrators around the world, now comes to kids in the coolest new book. Created and curated by Brian Castleforte, a graphic designer
This book shows the reader how to make a range of robust polyhedra from ordinary printer paper using a technique known as modular origami. Modular origami designs are made by first folding several, or sometimes many, sheets of paper into simple individual modules and then by putting these modules
Whicher explores the concepts of polarity and movement in modern projective geometry as a discipline of thought that transcends the limited and rigid space and forms of Euclid, and the corresponding material forces conceived in classical mechanics. Rudolf Steiner underlined the importance of
This comprehensive guide to pop-up design and paper mechanics is a delightful introduction to the intriguing aspects of a fascinating craft. This new and accessible approach to pop-up theory and practice distills the numerous mechanisms into a logical set of 18 underlying shapes and explains the
Methods for Euclidean Geometry explores one of the oldest and most beautiful of mathematical subjects. In this revised edition, the book begins with a thorough presentation of classical solution methods for plane geometry problems, but its distinguishing feature is the subsequent wealth of methods
Cutting, folding and sticking aren't just fun and games - they're also a great way to improve children's manual dexterity and ability to concentrate. Paper Playtime transforms the traditional workbook into a hands-on learning opportunity. With simple step-by-step instructions, the child will create
Paper explores what paper is, where it comes from, how it's made, what its properties are, and what it is used
Explore 60 of the world's most extraordinary and mysterious archaeological structures and locations to uncover fascinating insights into mankind's early understanding of the
Following on from his successful Drawing Geometry, Jon Allen explores the creation of the many-sided three-dimensional forms known as the Platonic and Archimedean solids. Based on patterns of equally spaced points on a sphere, these polyhedra have been the fundamentals of geometric exploration for
Through a unique approach combining art and mathematics, Perspective and Projective Geometry introduces students to the ways that projective geometry applies to perspective art. Geometry, like mathematics as a whole, offers a useful and meaningful lens for understanding the visual world. Exploring
This new-in-paperback edition provides a general introduction to algebraic and arithmetic geometry, starting with the theory of schemes, followed by applications to arithmetic surfaces and to the theory of reduction of algebraic curves. The first part introduces basic objects such as schemes,
Points and Lines: A Look at Projective Geometry.- Parallel Lines: A Look at Affine Geometry.- Area: A Look at Symplectic Geometry.- Circles: A Look at Euclidean
500 Fun Origamis is pocket-sized origami book with 500 pages and basic folding instructions. Its two companion books are: 500 Irresistible Origamis (9780228101505) 500 Fluorescent Origamis (9780228101499) Each of these books features 250 double-sided origami papers decorated with original
MAKE: Geometry helps K-12 students learn select geometry concepts. They will create 3D prints and other hands-on projects and observe geometry at work in everyday settings. Geometry, of all the branches of mathematics, is the one that is most easily visualized by making something. However, it is
Grade 4 Geometry and Measurement focuses on the following topics: Read and write fractions and decimals on a number line Understand and apply concepts of lines, angles, and circles Draw two-dimensional figures Measure and find the area and perimeter of rectangular shapes using appropriate units
Explores 100 traditional and modern typefaces in detail, with a full spread devoted to each entry. In this title, characters from each typeface are enlarged and annotated to reveal key features, anatomical details, and the finer, often-overlooked elements of type design, which shows how these
Differential geometry and topology have become essential tools for many theoretical physicists. In particular, they are indispensable in theoretical studies of condensed matter physics, gravity, and particle physics. Geometry, Topology and Physics, Second Edition introduces the ideas and techniques
Origami is an ancient art, yet modern paper folders can still invent fascinating new folds. Origami Paper Animals is filled with new and outstanding folds that will delight, amuse, and inspire paper folders of all ages. They offer a wide variety of designs that are rated according to skill level
Grade 4 Geometry and Measurement focuses on the following topics: Ordinal numbers, read and compare numbers to 1000 Compose and decompose two-dimensional shapes Group two-dimensional objects and shapes by like properties Length (inch, foot, yard, centimeter, meter), Weight (pound, gram, kilogram)