alt

  LESSONS
Academic year Age Topic
Download      Geometría
       Quadrilaterals
       Regular polygons and circles
       Triangles
       Areas of planes figures
       Pythagoras' Theorem
       Measuring angles
       Proving Pythagoras' theorem graphically
       Polygon measurements
       Tessellating the plane
       Geometric shapes on the plane
       Geometric ratio
       The circle
       Envelopes
       Star-shaped polygons and algorithms
       The golden number
       Movements on the plane
       Similarity
       Similar triangles
       Homothety and Similarity
       Escher's_tessellations
       Trigonometrical ratios of right angles triangles
       Trigonometrical ratios
       Analytical Geometry
       Geometry and a game of billiards
       Grid measurements
       Geometric construction of conic sections
       Solids of revolution
       Polyhedron
  Subir