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BACKGROUND. Calculus instruction is underexamined as a source of racialized and gendered inequity in higher education, despite research that documents minoritized students’ marginalizing experiences in undergraduate mathematics classes. This study fills this research gap by investigating mathematics faculty’s perceptions of the significance of race and gender to calculus instruction at a large, public, historically white research university. METHODS. Theories of colorblind racism and dysconsciousness guided a critical discourse analysis of seven undergraduate calculus faculty’s perceptions of instructional events. FINDINGS. Our analysis revealed two dominant discourses: (i) Race and gender are insignificant social markers in undergraduate calculus; and (ii) Instructional events can be objectively deemed race- and gender-neutral. We illustrate how calculus faculty varyingly engaged these colorblind discourses as well as discourses that challenged such conceptions of instruction. We also highlight how faculty dysconsciousness in reports of instructional practices reflect potential operationalization of dominant discourses that reinforce colorblind racism. CONTRIBUTION. With limited research on faculty perspectives on racial equity in mathematics, our study documents how color-evasive, gender-neutral discourses among mathematics faculty shape orientations to instruction that reinforce the gatekeeping role of calculus in STEM higher education. Implications are provided for race- and gender-conscious undergraduate mathematics instruction and faculty development. 

Undergraduate mathematics education can be experienced in discouraging and marginalizing ways among Black students, Latin
students, and white women. Precalculus and calculus courses, in particular, operate as gatekeepers that contribute to racialized and gendered attrition in persistence with mathematics coursework and pursuits in STEM (science, technology, engineering, and mathematics). However, student perceptions of instruction in these introductory mathematics courses have yet to be systematically examined as a contributor to such attrition. This paper presents findings from a study of 20 historically marginalized students’ perceptions of precalculus and calculus instruction to document features that they found discouraging and marginalizing. Our analysis revealed how students across different race-gender identities reported stereotyping as well as issues of representation in introductory mathematics classrooms and STEM fields as shaping their perceptions of instruction. These perceptions pointed to the operation of three racialized and gendered mechanisms in instruction: (i) creating differential opportunities for participation and support, (ii) limiting support from same-race, same-gender peers to manage negativity in instruction, and (iii) activating exclusionary ideas about who belongs in STEM fields. We draw on our findings to raise implications for research and practice in undergraduate mathematics education.