The 18 slide interactive powerpoint starts by looking at photos where people have simply been removed and then moves into more recent times where photoshop has allowed people to manipulate how the viewer might perceive the subjects. From there we talk about the need and harm that might be involved in revising history (including disenfranchised groups or following trends and omitting important people due to lack of knowledge). On many slides there are hyperlinks to articles so that students get more of an idea of what is actually going on. This can be done independently as more of a webquest or as 2 day class lecture. The slides show ends with a link to a 12 minute video about the Texas board of education and the changes they approved to the history curriculum in 2010.