Differentiation If you are teaching this to multiple classes, you can save different versions of the PPT, with Slide 8 completed for each block. Alternatively, have all classes combine their answers and have students look for similarities and differences. Do a Think, Pair, Share to allow students a chance to think and share with a partner before answering the questions as a whole group. Modifications Extending the Learning Students can read more about Elizabeth Fulhame, whose work contributed to the development of photography and scientists' understanding of chemical changes. Some additional resources with information about Elizabeth Fulhame: http://www.sia.edu/news-and-events/news/the-woman-behind-photography/ http://bip.cnrs-mrs.fr/bip10/fulhame.htm
