Resumen de How many light bulbs... ?

Brigitte Bentele (ed. lit.), Ron Lancaster (ed. lit.)

• Students analyze a photograph to solve mathematical questions related to the images captured in the photograph. This month, the geometry of circles and ellipses is investigated.

  This issue features the following images:

  http://www.nctm.org/eresources/images/MathLensPhoto1_1010.jpg http://www.nctm.org/eresources/images/MathLensPhoto2_1010.jpg http://www.nctm.org/eresources/images/MathLensPhoto3_1010.jpg http://www.nctm.org/eresources/images/MathLensPhoto4_1010.jpg http://www.nctm.org/eresources/images/MathLensPhoto5_1010.jpg http://www.nctm.org/eresources/images/MathLensPhoto6_1010.jpg http://www.nctm.org/eresources/images/MathLensPhoto7_1010.jpg http://www.nctm.org/eresources/images/MathLensPhoto8_1010.jpg http://www.nctm.org/eresources/images/MathLensPhoto9_1010.jpg