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  2. Mathematical Excursions - Wikipedia

    en.wikipedia.org/wiki/Mathematical_Excursions

    The book is devoted to mathematical puzzles and pastimes, [6] gathered from Merrill's experience as a teacher. [1] [3] It has 15 chapters, [4] most on arithmetic and number theory but with one on geometry.

  3. Mathematics education in the United States - Wikipedia

    en.wikipedia.org/wiki/Mathematics_education_in...

    Geometry, usually taken in ninth or tenth grade, introduces students to the notion of rigor in mathematics by way of some basic concepts in mainly Euclidean geometry. Students learn the rudiments of propositional logic, methods of proof (direct and by contradiction), parallel lines, triangles (congruence and similarity), circles (secants ...

  4. Geometry - Wikipedia

    en.wikipedia.org/wiki/Geometry

    Mathematics. Geometry (from Ancient Greek γεωμετρία (geōmetría) 'land measurement'; from γῆ (gê) 'earth, land' and μέτρον (métron) 'a measure') [1] is a branch of mathematics concerned with properties of space such as the distance, shape, size, and relative position of figures. [2] Geometry is, along with arithmetic, one ...

  5. The Geometer's Sketchpad - Wikipedia

    en.wikipedia.org/wiki/The_Geometer's_Sketchpad

    The Geometer's Sketchpad is a commercial interactive geometry software program for exploring Euclidean geometry, algebra, calculus, and other areas of mathematics.It was created as part of the NSF-funded Visual Geometry Project led by Eugene Klotz and Doris Schattschneider from 1986 to 1991 at Swarthmore College. [1]

  6. Van Hiele model - Wikipedia

    en.wikipedia.org/wiki/Van_Hiele_model

    Van Hiele model. In mathematics education, the Van Hiele model is a theory that describes how students learn geometry. The theory originated in 1957 in the doctoral dissertations of Dina van Hiele-Geldof and Pierre van Hiele (wife and husband) at Utrecht University, in the Netherlands. The Soviets did research on the theory in the 1960s and ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Helen Abbot Merrill - Wikipedia

    en.wikipedia.org/wiki/Helen_Abbot_Merrill

    Merrill was born on March 30, 1864, in Llewellyn Park, New Jersey; [2] her father was a New Jersey insurance claims adjustor of colonial stock. She moved to Massachusetts as a child. She entered Wellesley College in 1882, intending to major in Greek and Latin, but switching to mathematics after one year, and graduated in 1886. [2]

  9. Recreational mathematics - Wikipedia

    en.wikipedia.org/wiki/Recreational_mathematics

    Some of the more well-known topics in recreational mathematics are Rubik's Cubes, magic squares, fractals, logic puzzles and mathematical chess problems, but this area of mathematics includes the aesthetics and culture of mathematics, peculiar or amusing stories and coincidences about mathematics, and the personal lives of mathematicians.

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