======Physics Education Research (PER) Conference 2013====== {{:papersandpresentations:physicseducationresearch_PER:2013AAPTvanzeeetalrevised.pdf:}} van Zee, E.H., Jansen, H., Winograd, K. (2013, July). What happens when light from the Sun shines on the Earth? Physics Education Research Conference, Portland, OR. {{:papersandpresentations:2013AAPTpostervanZeerevisedreduced.jpg?1200X1000}}