Teacher candidates explored how they write in different spaces to offer recommendations to high school students and determine their own goals as writing teachers. E nglish language arts (ELA) teacher candidates enter teacher education with diverse writing experiences that influence their perceptions of writing instruction (Draper, Barksdale-Ladd, & Radencich, 2000;Mathers, Benson, & Newton, 2006). Like K-12 students, teacher candidates' experiences with writing are not limited to teacher-led, school-sanctioned writing tasks. With the rise in digital technologies, young people are composing, communicating, and interacting with one another both in and out of schools in myriad ways. Alvermann (2017) even claimed that people write more frequently than they read. Although we might expect that teacher candidates' digital lives could expand their perceptions about what counts as writing in school, recent research has suggested that the divide between in-and out-of-school writing remains strong. In fact, Hundley and Holbrook (2013) found that their teacher candidates viewed "real" writing as paperbased writing that happens in school and that they "maintained [a commitment] to conventional writing in ELA classrooms" (p. 500), despite the multimodal writing that they may be engaging in outside of schools. Teacher candidates' experiences with and beliefs about different forms of writing shape their expectations for and approaches to teaching writing themselves.A number of binaries are often invoked in discussions of writing pedagogy, namely, distinctions between in-and out-of-school writing, good and bad writing, and paper-based and digital writing. Attention to the mediational means-the places where writing happens, the purposes for writing, the tools for composing, the time allotted for writing, and so forth-rather than the aforementioned binaries could offer literacy teachers greater insight into students' experiences with, beliefs about, and strengths and struggles in writing. In this study, I consider how mediational means shape teacher candidates' experiences with writing. I draw from the findings to suggest that literacy educators might challenge dichotomous conceptions of writing by paying attention to the mediational means involved in writing instruction.The teacher candidates who participated in this study partnered with local high school students to maintain weekly blogs where they discussed their feelings about and experiences with writing and the relevance of writing to today's K-16 students. As I analyzed the blogs, I drew on sociocultural approaches to mediation (Vygotsky, 1987;Wertsch, 1991) and literature on writing, meaning, and mediation (Grossman, Smagorinsky, & Valencia, 1999;Smagorinsky, 2011) to consider the potential influence that the manner of mediation has on the value that teacher candidates see in writing. Specifically, I inquired into four research questions: