Part of the power of teaching with primary sources comes from their immediacy—eyewitness accounts of historic events can have an emotional impact that secondary sources might lack. This is especially true of primary sources relating to the terrorist attacks of September 11, 2001.
Can science teachers use primary sources? They certainly can. One approach is to use primary sources to examine how scientific discoveries were treated in popular culture.
"O, fatal day. O, noble victim. Treason has done its worst. The President has been assassinated." This hand-written diary entry, dated half past 10 o'clock PM, April 14, 1865, concludes simply, "I have just come from near the scene, it is too True."