As a philosopher and a reflective practitioner of philosophy in schools, I explore two aspects of presentation which I call unveiling and packaging. Both aspects bear on the work of designing and facilitating philosophy workshops for school students. I describe unveiling philosophy as a practice of collaborative inquiry and dialogic argument: social processes that foster thinking skills and dispositions, an evaluativist epistemology, and a range of constructive norms. I then discuss packaging philosophical materials in ways that create effective stimuli for (...) thinking. I encourage educators engaged in designing or curating stimuli to draw on the rich diversity of available media, to focus on the quality of both the philosophical content and its creative expression, and to ensure that the content connects with students’ life experiences. I propose five criteria for judging the likely effectiveness of a philosophical stimulus: that it activate emotion, induce perplexity, challenge intuitions, ignite controversy and elicit reasoned argument. I offer three detailed examples of high school philosophy workshops to illustrate the practical application of these criteria, and to illuminate fruitful possibilities for arranging stimuli, including using a Provocation-Complication sequence or arranging stimuli as elements in a more complex puzzle. (shrink)