Morenci Copper Mine, Arizona, Map and News

Morenci is one of North America's largest producer of copper and one of the largest open-pit mines in the world.
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Problem 561: Triangle, Cevian, Incenter, Perpendicular, 90 Degrees

Geometry Problem
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Level: High School, SAT Prep, College geometry

William Baziotes: Cyclops, 1947 and Golden Rectangles

Profoundly affected by his encounters with Surrealists who were living in New York City in the 1940s, William Baziotes explored his imagination and incorporated automatic drawing and biomorphic imagery into his art practice. Shown at Chicago Art Institute.
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Problem 560: Triangle, Cevian, Incenter, Incircle, Perpendicular, Tangent

Geometry Problem
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Level: High School, SAT Prep, College geometry

Problem 559: Triangle, Cevian, Incenters, Angle, 90 Degrees

Geometry Problem
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Level: High School, SAT Prep, College geometry

Problem 558: Quadrilateral, Trisection, Sides, Wittenbauer Parallelogram, Area

Geometry Problem
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Level: High School, SAT Prep, College geometry

Problem 557: Quadrilateral, Midpoints, Sides, Varignon Parallelogram, Area

Geometry Problem
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Level: High School, SAT Prep, College geometry

Problem 556 Quadrilateral, Diagonal, Angles, Auxiliary Lines.

Geometry Problem
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Level: High School, SAT Prep, College geometry

Jane Frank: "Crags and Crevices" (1961) and Golden Rectangles

"Crags and Crevices" was the largest and most striking canvas in Jane Frank's 1962 solo exhibition at the Corcoran Gallery.
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Hans Hofmann - Index

Hofmann (1880 - 1966) was renowned not only as an artist but as a teacher of art.
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Hans Hofmann: The Gate, 1959-60 and Golden Rectangles

Hofmann (1880 - 1966) was renowned not only as an artist but as a teacher of art.
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Kaleidoscope based on: The Gate, 1959-60 by Hans Hofmann

Hofmann (1880 - 1966) was renowned not only as an artist but as a teacher of art.
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"Hans Hofmann, Circa 1950" at the Rose Art Museum, Video

Hofmann (1880 - 1966) was renowned not only as an artist but as a teacher of art.
Past Exhibition: 15 January through 5 April, 2009. An extraordinary body of work created by Hans Hofmann for the architect Josep Sert’s 1950 city plan called the Chimbote Project was the genesis for this exhibition.
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Hans Hofmann: Chimbote Mural Fragment, 1950 and Golden Rectangles

Hofmann (1880 - 1966) was renowned not only as an artist but as a teacher of art.
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Richard Anuszkiewicz: Temple of the Radiant Yellow and Golden Rectangles

Richard Anuszkiewicz (born May 23, 1930, Erie, Pennsylvania) is an American artist. He is considered a major force in the Op Art movement.
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Kaleidoscope based on: Temple of the Radiant Yellow by Richard Anuszkiewicz

Richard Anuszkiewicz (born May 23, 1930, Erie, Pennsylvania) is an American artist. He is considered a major force in the Op Art movement.
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Richard Anuszkiewicz (1930) Index

Richard Anuszkiewicz (born May 23, 1930, Erie, Pennsylvania) is an American artist. He is considered a major force in the Op Art movement.
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A conversation with Richard Anuszkiewicz at SAMA, Video

The San Antonio Museum of Art presents "Artist Conversations" between David S. Rubin, The Brown Foundation Curator of Contemporary Art, and Richard Anuszkiewicz.
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Problem 555: Parallel lines, Angles, Sum

Geometry Problem
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Level: High School, SAT Prep, College geometry

Problem 554: Concave Quadrilateral, Angles, Sum

Geometry Problem
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Level: High School, SAT Prep, College geometry

Problem 553: Quadrilateral, Angles, Sum

Geometry Problem
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Level: High School, SAT Prep, College geometry

Problem 552: Parallel lines, Transversal, Angles

Geometry Problem
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Level: High School, SAT Prep, College geometry

Problem 551: Parallel lines, Transversal, Angles

Geometry Problem
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Level: High School, SAT Prep, College geometry

Problem 550: Parallel lines, Transversal, Angles

Geometry Problem
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Level: High School, SAT Prep, College geometry

Problem 549: Parallel lines, Transversal, Angles

Proposed Problem
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Level: High School, SAT Prep, College geometry

Book: Computational Geometry, An Introduction by Franco P. Preparata, Michael Ian Shamos (1985)

Mind Map and News
This book was for many years the standard textbook in computational geometry.
Graphic organizers are visual representations of knowledge, concepts or ideas.
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Combinatorial Computational Geometry MindMap

Mind Map and News
Graphic organizers are visual representations of knowledge, concepts or ideas.
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Mathematics: Computational Geometry Index

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Computational Geometry, Interactive Mind Map and News

Mind Map and News
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Geometric Topology: The Adventures of the Klein Bottle, Video

In mathematics, the Klein bottle is a non-orientable surface with no identifiable "inner" and "outer" sides.
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Topology: Jordan Curve Theorem, Video

In topology, a Jordan curve is a non-self-intersecting continuous loop in the plane.
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Topology: Index

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Word Cloud of Topology

Weighted list in visual design.
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Google Books Ngram Viewer: Algebra, Arithmetic, Geometry, Topology

This is Google Trends for all published (and scanned) English books in the past 200 years (1800-2000) about the ngrams: Algebra, Arithmetic, Set theory, Calculus, Geometry, Topology, Combinatorics, Number theory and Differential equations.
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Word Cloud of Google Books Ngram Viewer

Weighted list in visual design.
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Problem 548: Triangle, Transversal, Complete Quadrilateral, Circumcircles, Circumcenters, Similarity, Concyclic Points

Geometry Problem
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Level: High School, SAT Prep, College geometry

Nassos Daphnis: "17-74-75, 1974, 1975" and Golden Rectangles

Nassos Daphnis, a Greek-American artist who deployed brilliantly colored geometric forms in precise formal relationships to create nervous, dynamic paintings on a heroic scale, died on Nov. 23 in Provincetown, Mass.

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Kaleidoscope based on: "17-74-75, 1974, 1975" by Nassos Daphnis

Nassos Daphnis, a Greek-American artist who deployed brilliantly colored geometric forms in precise formal relationships to create nervous, dynamic paintings on a heroic scale, died on Nov. 23 in Provincetown, Mass.

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Nassos Daphnis and New York School 1950s

Nassos Daphnis, a Greek-American artist who deployed brilliantly colored geometric forms in precise formal relationships to create nervous, dynamic paintings on a heroic scale, died on Nov. 23 in Provincetown, Mass.

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Nassos Daphnis: "17-74-75, 1974, 1975" and Golden Rectangles

Nassos Daphnis, a Greek-American artist who deployed brilliantly colored geometric forms in precise formal relationships to create nervous, dynamic paintings on a heroic scale, died on Nov. 23 in Provincetown, Mass.

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Nassos Daphnis and Art of the 1950s, Abstract Expressionism-Video

Nassos Daphnis, a Greek-American artist who deployed brilliantly colored geometric forms in precise formal relationships to create nervous, dynamic paintings on a heroic scale, died on Nov. 23 in Provincetown, Mass.

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Nassos Daphnis: S-20, 1969 and Golden Rectangles

Nassos Daphnis, a Greek-American artist who deployed brilliantly colored geometric forms in precise formal relationships to create nervous, dynamic paintings on a heroic scale, died on Nov. 23 in Provincetown, Mass.

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English ESL Conversations: Travel

Interactive Mind Map
Graphic organizers are visual representations of knowledge, concepts or ideas.
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English ESL Conversations: Socializing

Interactive Mind Map
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English ESL Conversations: Small Talk

Interactive Mind Map
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English ESL Conversations: Shopping

Interactive Mind Map
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English ESL Conversations: Selling a House

Interactive Mind Map
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English ESL Conversations: Renting an Apartment

Interactive Mind Map
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English ESL Conversations: In a New Neighborhood

Interactive Mind Map
Graphic organizers are visual representations of knowledge, concepts or ideas.
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Problem 547: Triangle, Transversal, Four Circumcircles, Concurrency

Geometry Problem
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Level: High School, SAT Prep, College geometry