Social and emotional learning (SEL) programs have traditionally evaded or been silent on issues of (in)equity and, thus, critiqued for their lack of attention to how social injustices create different outcomes for different groups (The Education Trust, 2020). Furthermore, these efforts have been criticized for placing the burden on individual youth to navigate challenges to SEL without recognizing the influence of systems. "Transformative SEL" offers an alternative approach that centers the integration of an explicit equity and social justice lens into the conceptualization and implementation of SEL (Jagers, Rivas-Drake, & Williams, 2019). Notwithstanding its usefulness as a conceptual framework, mechanisms for "how" a transformative SEL approach may occur have not been well-specified. We recognize that historically, the curricular materials available to SEL educators often take a conformist approach focused on skill-building, coping, and even resilience absent attention to broader social injustices (Jagers, 2016), further burdening teachers with having to redesign curricula to incorporate their commitments into a culturally responsive, justice-oriented pedagogy. We offer "stretching" as a conceptual category that aims to capture the ways in which educators adapt SEL frameworks and school policies, student-educator relationships, curricula, and instructional practices in order to critically consider and responsibly address their students' experiences of injustice. We argue that "stretching" of SEL practice is a critical mechanism for conceptualizing how teachers go beyond traditionally equity-evasive notions of SEL to more proactively engage equity issues in their SEL implementation. We will use examples of teaching practice to illustrate and define what constitutes stretching in SEL instruction. [For the complete volume, "Motivating the SEL Field Forward through Equity. Advances in Motivation and Achievement. Volume 21," see ED673001.]