The comprehension and calibration of 54 undergraduates were investigated as they read excerpts from an introductory geology textbook on weather and soil in print and digitally. All excerpts were approximately 1600 words in length and contained a graph, a diagram, and three photographs that complemented or extended the written text. Each student…

Many scholars working on history education have stressed that, in order to "do history," a congruent relation between substantive and procedural knowledge is required. In response to this argument, this article emphasizes the need to consider pupils' relations to substantive knowledge. With reference to history textbooks currently used…