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Geometry Recent Additions (Page 19 of 20)
Above, left: Bird's-eye view of the Nazca lines, the Monkey (90 meters /
295 feet long). The Nazca Lines are gigantic geoglyphs located in Peru.
Welcome! Geometry Step-by-Step from the Land
of the Incas provides an eclectic mix of sound, science, and
Incan history in order to raise students' interest in Euclidean geometry.
Visitors will find geometry problems, proofs, quizzes, puzzles,
quotations, visual displays, "scientific
speculation", Cuzco, Machu Picchu, Lost City of the Incas, Nazca Lines, the Quipu, the Lord of Sipan, Caral: the oldest civilization in the Americas, and more.
Site created and maintained by Antonio Gutierrez.
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This site is best viewed
with Firefox or Internet Explorer and at a resolution
of 1024 x 768 or higher.
Requires:
Flash
Player,
Java
JRE 1.3 or higher
and JavaScript. |
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Recent
Additions (Page 19 of 20)
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60. |
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Ceva's Theorem.
Concurrency.
Interactive proof with animation. Key concept:
Menelaus Theorem.
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59. |
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Puzzle of
the Ceva's Theorem: 48 classic piece. |
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58. |
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Menelaus' Theorem.
Interactive proof with animation and key concepts. |
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57. |
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Triangle with the bisectors of the
exterior angles. Collinearity. Key concept:
Menelaus Theorem.
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56. |
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Napoleon's Theorem.
A purely geometric proof. It uses the Fermat point to prove Napoleon
without transformations.
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55. |
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Morley's Theorem. Introduction with animation.
Triangle + Trisectors = Equilateral triangle.
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54. |
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Morley's Theorem Puzzle: 22 pieces of
polygons. |
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53. |
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Sierpinski Triangle and Machu Picchu.
Fractal illustration with animation.
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52. |
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Sierpinski Triangle
and Machu Picchu. Puzzle. |
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51. |
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Monge &
d'Alembert Three Circles Theorem II with Dynamic Geometry
You can alter the geometric construction dynamically in order to test
and prove (or disproved) conjectures and gain mathematical insight that
is less readily available with static drawings by hand. Requires Java
Plug-in 1.3 or higher. Please be patient while
the applet loads on your computer. If you are using a dial-up
connection, it may take a few minutes but is well worth the wait. Cabri, GSP, Cinderella,
C.a.R. |
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50. |
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Monge &
d'Alembert Three Circles Theorem I with Dynamic Geometry
You can alter the geometric construction dynamically in order to test
and prove (or disproved) conjectures and gain mathematical insight that
is less readily available with static drawings by hand. Requires Java
Plug-in 1.3 or higher. Please be patient while
the applet loads on your computer. If you are using a dial-up
connection, it may take a few minutes but is well worth the wait. Cabri, GSP, Cinderella,
C.a.R. |
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49. |
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Miquel's
Pentagram with Dynamic Geometry. You can alter the pentagram dynamically
in order to test and prove (or disproved) conjectures and gain
mathematical insight that is less readily available with static drawings
by hand. Requires Java Plug-in 1.3 or higher. Please be patient while
the applet loads on your computer. If you are using a dial-up
connection, it may take a few minutes but is well worth the wait. Cabri, GSP, Cinderella,
C.a.R. |
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48. |
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Inca Quiz. Ten questions in random order.
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47. |
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Puzzle of The Raft of the Medusa: 91 pieces of lizards
tessellation.
Languages: English,
Spanish
and
Traditional Chinese. |
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46. |
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The Lord of Sipan and Geometric Art randomly generated with
animation.
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45. |
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I've Learned Inspirational poem with animation and sound.
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44. |
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On Children a
poem by Kahlil Gibran. |
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43. |
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The Road Not Taken.
Robert Frost's poem about choices and decision making.
Spanish version
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42. |
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The Road Not Taken Puzzle. Robert
Frost's poem, puzzle 48 pieces of USA map. |
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41. |
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About Peru, The Land of the Incas.
Interactive introduction with animation and sound.
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