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  • Long live triangles!
  • Construction of trigonometric ratios, the sine
  • Transition to trigonometric functions
  • Properties of trigonometric functions: wave function

Long live triangles!

Author:
Aitzol Lasa
Topic:
Triangles, Trigonometry
This GeoGebraBook contains the dynamic models for the article: Lasa, A., Belloso, N., Abaurrea, J. (2016). Long live triangles! Dynamic models for trigonometry. Revista do Instituto GeoGebra de São Paulo, 5(2), 30- 55. Link to article: http://revistas.pucsp.br/index.php/IGISP/article/view/28630 Pubblicato in italiano: "Lunga vita ai triangoli", https://www.geogebra.org/book/title/id/cnKZVc6d#chapter/0 Euskaraz eskuragarri: "Triangeluen gorazarrea", https://www.geogebra.org/book/title/id/Sg8UI8v8#chapter/0 Disponible en castellano: "Elogio de los triángulos", https://www.geogebra.org/m/d2exF80t#chapter/0 Nou! Ara també en català! Publicat en català: “Elogi als triangles” https://www.geogebra.org/book/title/id/eQaSd8de
Long live triangles!

Table of Contents

  • Construction of trigonometric ratios, the sine

    • Sine: explorative model
    • Sine: illustrative model
    • Sine: demonstrative model
  • Transition to trigonometric functions

    • Function: explorative model
    • Periodic function: explorative model
    • Period of a periodic function: explorative model
    • Goniometric circle: illustrative model
    • y=sin(x) function: illustrative model
  • Properties of trigonometric functions: wave function

    • Trigonometric projection: explorative model
    • Trigonometric properties: demonstrative model
    • Wave functions: explorative model
    • Wave functions: illustrative model
Next
Sine: explorative model

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