## Invited Talks

Lewis, K. E., (2019, April) Productive struggle for all students using differentiated instruction. Invited talk at the National Council for Teachers of Mathematics Research Conference. San Diego, CA.

Lambert, R., Harriss, E., Lynn, D. M. & Lewis, K. E. (2019, April). Rethinking mathematics education through neurodiversity. Invited talk at the National Council for Teachers of Mathematics Annual Conference. San Diego, CA.

Lewis, K. E. (2017, April). *Mathematics learning disabilities in algebra: A case study.* Invited talk at the National Council for Teachers of Mathematics Research Conference, in the Mathematics Learning and Students with Disabilities Invited Session. San Antonio, TX.

Lewis, K. E. (2016, December). *Mathematical Learning Disability through a Vygotskian Lens: Difference, Re-mediation, and Compensation*. Invited Talk at University of Wisconsin, Madison. Mathematical Thinking, Learning, and Instruction Colloquium. Madison, WI.

Lewis, K. E., (2016, August). *Providing Access for All*. Invited keynote presentation at the Summer Academy on Mathematical Equity, Couer d’Alene, Idaho.

Lewis, K. E. & Lynn, D. (2016, October). *Rewriting Our Understanding of Mathematical Learning Disability*. Invited presentation at the University of Washington Disability Studies brown bag, Seattle, WA.

Lewis, K. E. (2015, April) *Crafting a Dissertation-based Research Article for Journal for Research in Mathematics Education*. Invited panel member at annual meeting for National Council for Teachers of Mathematics Annual Meeting. Boston, MA.

## Conference Presentations

Lewis, K. E., Sweeney, G., Thompson, G. M., Adler, R. M., and Alhamad, K. (2022, Nov). Identifying persistent unconventional understandings of algebra: A case study of an adult with dyscalculia. Paper presented at the annual meeting of the Psychology of Mathematics Education – North America (PMENA) annual conference, Nashville, TN.

Click here for the Research Recap of this paper

Lewis, K. E., Sweeney, G., Adler, R. & Thompson, G. (2019, April). *Atypical algebraic understandings: A case study of a mathematical learning disability*. Paper presented at the annual meeting of the American Educational Research Association (AERA), Toronto, Canada.

Click here for the Research Recap of this paper

Lewis, K. E. & Lynn, D. (2017, May). *Emancipatory research: Compensating for a mathematical learning disability*. Paper presented at the annual meeting of the American Educational Researchers Association (AERA), San Antonio, TX.

Lewis, K. E. (2016, November). *Beyond the basics: Understanding mathematical learning disabilities in algebra*. Paper presented at the annual National Academy of Education Spencer Fellows Retreat, Washington DC.

Lewis, K. E. & Lynn, D. (2016, November). *Compensation: Rewriting Our Understanding of Math Learning Disabilities*. Paper presented at the annual meeting of the North American Chapter of the International Group for Psychology and Mathematics Education (PME-NA). Tucson, AZ.

Fisher, M. B. & Lewis, K. E. (2016, April). *Increasing access: Mathematics instruction for students with disabilities.* Paper presented at the annual meeting of Council for Exceptional Children (CEC), St. Louis, MO.

Lewis, K. E. & Fisher, M. B. (2016, April). *Review of 40 years of research on mathematical learning disabilities: Methodological issues and future directions. *Poster presented at the annual meeting of American Educational Researchers Association (AERA), Washington DC.

Lewis, K. E. (2015, Nov). Understanding issues of quantity through comparisons: Math learning disabilities and fractions. Paper presented at the annual meeting of the North American Chapter of the International Group for Psychology and Mathematics Education (PME-NA). East Lansing, MI.

Lewis, K. E. (2015, April). *Reframing mathematical learning disabilities through a Vygotskian lens: A case study of a Re-mediation**. *Paper presented at the annual meeting of American Educational Researchers Association (AERA), Chicago, IL.

Lewis, K. E. (2014, April). *Persistent difficulties with fractions: Understanding and screening for math learning disabilities**. *Paper presented at the annual meeting of Council for Exceptional Children (CEC), Philadelphia, PA.

Lewis, K. E. (2014, April). *Math learning disabilities and fraction comparisons: Understanding errors**. *Paper presented at the annual meeting of American Educational Researchers Association (AERA), Philadelphia, PA.

Lewis, K. E., Thouless, H., Fisher, M. (2013, April). *Identifying and Building Upon Students’ Mathematical Understanding in RTI*. Invited paper presented at National Council for Teachers of Mathematics Conference, Denver, CO.

Lewis, K. E. (2013, July) Atypical understandings: A diagnostic case study of mathematical learning disabilities and fractions. Paper presented at third annual Center for Improving Learning of Fractions, Long Beach, CA.

Lewis, K. E. (2012, Nov). Beyond low achievement: Identifying mathematical learning disabilities through atypical understandings. Poster presented at the 34th Annual Meeting of the North American Chapter of the International Group for Psychology and Mathematics Education (PME-NA). Kalamazoo, MI.

Lewis, K. E. & Lynn, D. (2011, June). Manifestations of a mathematical learning disability across topic domains: A unique case. Paper presented at the 41st annual meeting of the Jean Piaget Society (JPS), Berkeley, CA.

Lewis, K. E. (2011, April). Atypical understandings: Mathematical learning disabilities and fractions. Poster presented at the annual meeting of American Educational Researchers Association (AERA), New Orleans, LA.

Lewis, K. E. (2011, April). Pairing diagnostic analysis and remediation: A case study of mathematical learning disabilities. Poster presented at the biennial Society for Research in Child Development (SRCD), Montreal, Canada.

Lewis, K. E. (2010, June). Mathematical Learning Disabilities and Fractions: A Diagnostic Case Study. Poster presented at the annual meeting of the Institute of Education Sciences (IES), Washington, DC.

Lewis, K. E. (2010, April). Mathematical learning disabilities: Representing action, ignoring quantity. Paper presented at the annual meeting of American Educational Researchers Association (AERA), Denver, CO.

Lewis, K. E. (2010, January). Atypical understandings: A diagnostic view of mathematical learning disabilities. Poster presented at the annual meeting of Special Education, Disability, and Developmental Risk (SPEDDR), Santa Barbara, CA.

Lewis, K. E. (2009, October). Diagnosis and Remediation: Mathematical learning disabilities and fractions. Paper presented at the annual conference of Learning Disabilities Worldwide (LDW), Burlington, MA.

Lewis, K. E. (2009, April). Learning and forgetting: A microgenetic analysis of mathematical learning disabilities. Poster presented at the National Council for Teachers of Mathematics Research Pre-session, Washington DC.

Lewis, K. E. (2009, April). Understanding difference: A view of mathematical learning disabilities through student explanations. Paper presented at the annual meeting of American Educational Researchers Association (AERA), San Diego, CA.

Lewis, K. E. (2009, January). Exploring dimensions: A case study of mathematical learning disabilities in high school. Poster presented at the annual conference of Special Education, Disability, and Developmental Risk (SPEDDR), Santa Barbara, CA.

Lewis, K. E. (2008, April). Into Uncharted Territories: Mathematical Learning Disabilities in High School. Poster presented at the annual meeting of American Educational Researchers Association (AERA), New York, NY.

Lewis, K. E. (2008, January). Unstable representations: Manifestations of a mathematical learning disability. Poster presented at the annual meeting of Special Education, Disability and Developmental Risk (SPEDDR), Santa Barbara, CA.

Lewis, K. E. (2007, October). Mathematical learning disabilities: An exploratory case study. Poster presented at the annual meeting of the North American Chapter of the International Group for Psychology and Mathematics Education (PME-NA) Annual Meeting, Reno, NV.

Lewis, K. E. (2006, April) Learning as a process: A microgenetic analysis of one student’s learning of integer arithmetic. Poster presented at the annual meeting of the American Educational Researchers Association (AERA), San Francisco, CA.

Diversity in Mathematics Education (DiME) Fellows. Why They Fail: Unpacking Everyday Explanations of the Achievement Gap Within Research on Differential Mathematics Achievement. American Educational Researchers Association Annual Meeting, Montreal, Canada.