WEB GRAFIA

http://www.vitutor.com/geo/coni/fActividades.html

https://www.youtube.com/watch?v=IN0Ve_oUn24

http://www.ing.unlp.edu.ar/ingreso/contenidos/secciones_conicas_parabola-12-16.pdf http://www.ditutor.com/geometria_analitica/secciones_conicas.html

http://math2.org/math/algebra/es-conics.htm

http://www.ditutor.com/geometria_analitica/ecuacion_elipse.html

http://prepafacil.com/cobach/Main/LaParabolaComoLugarGeometrico

https://www.youtube.com/watch?v=IN0Ve_oUn24
http://www.eduteka.org/MI/master/interactivate/activities/Index.html

http://www.google.com.co/imgres?imgurl=&imgrefurl=http%3A%2F%2Finclusiondigital.gov.ar%2Frecursos-y-estrategias%2Fficha-para-la-modalidad-1-a-1-las-conicas-circunferencia-elipse-parabola-e-hiperbola%2F&h=0&w=0&sz=1&tbnid=Ds42bRkWHe09WM&tbnh=205&tbnw=246&zoom=1&docid=m9ApstnbO61RFM&ei=sQF4UtvDD8bmsATH7YCgBA&ved=0CAIQsCU