Abby Wahl

String Straight-edge and Shadow

String Straight-edge and Shadow

Please note that this Floris Books edition has been revised for UK and European notation, language and metric systems. From the early peoples who marvelled at the geometry of nature -- the beehive and bird's nest -- to ancient civilisations who questioned beautiful geometric forms and asked 'why', the story of geometry spans thousands of years. Using only three simple tools -- the string, the straight-edge and the shadow -- human beings revealed the basic principles and constructions of elementary geometry. Weaving history and legend, this fascinating book reconstructs the discoveries of mathematics's most famous figures. Through illustrations and diagrams, readers are able to follow the reasoning that lead to an ingenious proof of the Pythagorean theorem, an appreciation of the significance of the Golden Mean in art and architecture, or the construction of the five regular solids. This insightful and engaging book makes geometry accessible to everyone. Readers will be fascinated with how the knowledge and wisdom of so many cultures helped shape our civilisation today. String, Straight-edge and Shadow is also a useful and inspiring book for those teaching geometry in Steiner-Waldorf classrooms.

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The Age of Walls: How Barriers Between Nations Are Changing Our World

The Age of Walls: How Barriers Between Nations Are Changing Our World

Tim Marshall, the New York Times bestselling author of Prisoners of Geography, offers “a readable primer to many of the biggest problems facing the world” (Daily Express, UK) by examining the borders, walls, and boundaries that divide countries and their populations.

The globe has always been a world of walls, from the Great Wall of China to Hadrian’s Wall to the Berlin Wall. But a new age of isolationism and economic nationalism is upon us, visible in Trump’s obsession with building a wall on the Mexico border, in Britain’s Brexit vote, and in many other places as well. China has the great Firewall, holding back Western culture. Europe’s countries are walling themselves against immigrants, terrorism, and currency issues. South Africa has heavily gated communities, and massive walls or fences separate people in the Middle East, Korea, Sudan, India, and other places around the world.

In fact, more than a third of the world’s nation-states have barriers along their borders. Understanding what is behind these divisions is essential to understanding much of what’s going on in the world today. Written in Tim Marshall’s brisk, inimitable style, The Age of Walls is divided by geographic region. He provides an engaging context that is often missing from political discussion and draws on his real life experiences as a reporter from hotspots around the globe. He examines how walls, borders, and barriers have been shaping our political landscape for hundreds of years, and especially since 2001, and how they figure in the diplomatic relations and geo-political events of today.

“Marshall is a skilled explainer of the world as it is, and geography buffs will be pleased by his latest” (Kirkus Reviews). “Accomplished, well researched, and pacey…The Age of Walls is for anyone who wants to look beyond the headlines and explore the context of some of the biggest challenges facing the world today, it is a fascinating and fast read” (City AM, UK).

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The Liberal Arts Tradition: A Philosophy of Christian Classical Education (Revised Edition)

The Liberal Arts Tradition: A Philosophy of Christian Classical Education (Revised Edition)

The Liberal Arts Tradition: A Philosophy of Christian Classical Education introduces readers to a paradigm for understanding a classical education that transcends the familiar 3-stage pattern of grammar, logic, and rhetoric. Instead, this book describes the liberal arts as a central part of a larger and more robust paradigm of classical education that should consist of piety, gymnastic, music, liberal arts, philosophy, and theology. The Liberal Arts Tradition also recovers the means by which classical educators developed more than just intellectual virtue (by means of the 7 liberal arts) but holistically cultivated the mind, body, will, and affections. This is a must-read for educators who want to take a second big step toward recovering the tradition of classical education.

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Mathematics: Is God Silent?

Mathematics: Is God Silent?

This book revolutionizes the prevailing understanding and teaching of math. The addition of this book is a must for all upper-level Christian school curricula and for college students and adults interested in math or related fields of science and religion. It will serve as a solid refutation for the claim, often made in court, that mathematics is one subject, which cannot be taught from a distinctively Biblical perspective.

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Perelandra

Perelandra

The second book in C. S. Lewis's acclaimed Space Trilogy, which also includes Out of the Silent Planet and That Hideous Strength, Perelandra continues the adventures of the extraordinary Dr. Ransom. Pitted against the most destructive of human weaknesses, temptation, the great man must battle evil on a new planet -- Perelandra -- when it is invaded by a dark force. Will Perelandra succumb to this malevolent being, who strives to create a new world order and who must destroy an old and beautiful civilization to do so? Or will it throw off the yoke of corruption and achieve a spiritual perfection as yet unknown to man? The outcome of Dr. Ransom's mighty struggle alone will determine the fate of this peace-loving planet.
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The Complete Father Brown Stories

The Complete Father Brown Stories

Father Brown, one of the most quirkily genial and lovable characters to emerge from English detective fiction, first made his appearance in The Innocence of Father Brown in 1911. That first collection of stories established G.K. Chesterton's kindly cleric in the front rank of eccentric sleuths. This complete collection contains all the favourite Father Brown stories, showing a quiet wit and compassion that has endeared him to many, whilst solving his mysteries by a mixture of imagination and a sympathetic worldliness in a totally believable manner.

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Arithmetic

Arithmetic

Because we have ten fingers, grouping by ten seems natural, but twelve would be better for divisibility, and eight is well suited to repeated halving. Grouping by two, as in binary code, has turned out to have its own remarkable advantages.

Paul Lockhart presents arithmetic not as rote manipulation of numbers―a practical if mundane branch of knowledge best suited for filling out tax forms―but as a fascinating, sometimes surprising intellectual craft that arises from our desire to add, divide, and multiply important things. Passionate and entertaining, Arithmetic invites us to experience the beauty of mathematics through the eyes of a beguiling teacher.

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A River Runs Through It

A River Runs Through It

From its first magnificent sentence, "In our family, there was no clear line between religion and fly fishing", to the last, "I am haunted by waters", A River Runs Through It is an American classic.

Based on Norman Maclean's childhood experiences, A River Runs Through It has established itself as one of the most moving stories of our time; it captivates readers with vivid descriptions of life along Montana's Big Blackfoot River and its near magical blend of fly fishing with the troubling affections of the heart.

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Inferno (The Divine Comedy)

Inferno (The Divine Comedy)

An extraordinary new verse translation of Dante’s masterpiece, by poet, scholar, and lauded translator Anthony Esolen

Of the great poets, Dante is one of the most elusive and therefore one of the most difficult to adequately render into English verse. In the Inferno, Dante not only judges sin but strives to understand it so that the reader can as well. With this major new translation, Anthony Esolen has succeeded brilliantly in marrying sense with sound, poetry with meaning, capturing both the poem’s line-by-line vigor and its allegorically and philosophically exacting structure, yielding an Inferno that will be as popular with general readers as with teachers and students. For, as Dante insists, without a trace of sentimentality or intellectual compromise, even Hell is a work of divine art.

Esolen also provides a critical Introduction and endnotes, plus appendices containing Dante’s most important sources—from Virgil to Saint Thomas Aquinas and other Catholic theologians—that deftly illuminate the religious universe the poet inhabited.

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Mathematicians Are People, Too: Stories from the Lives of Great Mathematicians

Mathematicians Are People, Too: Stories from the Lives of Great Mathematicians

Volume One focuses on moments of mathematical discovery experienced by Thales, Pythagoras, Hypatia, Galileo, Pascal, and others. Volume Two dramatizes the lives of Omar Khayyam, Albert Einstein, Ada Lovelace, and others.

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The Chosen

The Chosen

It is the now-classic story of two fathers and two sons and the pressures on all of them to pursue the religion they share in the way that is best suited to each. And as the boys grow into young men, they discover in the other a lost spiritual brother, and a link to an unexplored world that neither had ever considered before. In effect, they exchange places, and find the peace that neither will ever retreat from again. . . .

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The Martian – classroom edition

The Martian – classroom edition

From Amazon:

"Six days ago, astronaut Mark Watney became one of the first people to walk on Mars.

Now, he's sure he'll be the first person to die there.

After a dust storm nearly kills him and forces his crew to evacuate while thinking him dead, Mark finds himself stranded and completely alone with no way to even signal Earth that he’s alive—and even if he could get word out, his supplies would be gone long before a rescue could arrive.

Chances are, though, he won't have time to starve to death. The damaged machinery, unforgiving environment, or plain-old "human error" are much more likely to kill him first."

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