Johnson, H. L. (2021, December). Curating experiences in asynchronous online courses in mathematics teacher education. University of Maryland NOTICE Lab Colloquium. College Park, MD. (Presentation given via Zoom).
Johnson, H. L. (2020, September). ITsCRITiCAL: An intervention to promote students’ reasoning and address power dynamics in college algebra. Texas State Mathematics Colloquium. San Marcos, TX. (Presentation given via Zoom).
Johnson, H. L. & Tsinnajinnie, B. (2020, October). Navigating a mathematics education collaboration across institutions. University of Northern Colorado Mathematics Department Seminar. Greeley, CO. (Presentation given via Zoom).
Johnson, H. L. (2019, June). Opportunities for reasoning impact students’ math attitudes and course performance. Annual Conference of the Maine Center for Research in STEM Education (RiSE). Orono, ME. Link to Abstract.
Johnson, H. L. (2017, December). Promoting students’ smooth covariational reasoning. Mathematics Education Colloquium. Tempe, Arizona: Arizona State University. Link to Abstract.
Johnson, H. L. (2017, November). Networking theories to design techtivities to promote students’ covariational reasoning. Universiteit Utrecht Freudenthal Institute Research Meeting. Utrecht, Netherlands. Link to Abstract.
Johnson, H. L. (2017, October). Task design to promote students’ covariational reasoning: A multi-theoretic approach. Universität Bremen Mathematisches Kolloquium. Bremen, Germany. Link to Abstract.
Johnson, H. L. (2017, September). Networking theories to design dynamic computer environments to foster students’ quantitative and covariational reasoning. Mathematics Education Research Colloquium, Linköping, Sweden: Linköping University.
Pape, S., Munter, C., Beckmann, S., Leatham, K. R., Silver, E. A., Johnson, H. L., Dixon, J. K., Boston, M. D., Arbaugh, F., & Kastberg, S. (2016, April). Graduate student, junior faculty, and researcher mentoring session. Invited Mentoring Session for the National Council of Teachers of Mathematics’ Annual Research Conference, San Francisco, CA.
Johnson, H. L. (2015, May). Investigating roots of covariational reasoning: Leveraging a dynamic computer environment to foster students’ shifts from variational to covariational reasoning. Research presentation for the 2014-15 Maseeh Mathematics and Statistics Colloquium Series, Portland, OR: Portland State University.
Johnson, H. L. (2015, March). Laying groundwork for function and rate: Leveraging a dynamic computer environment to foster students’ quantitative and variational reasoning. Research presentation for the Mathematics and Science Colloquium, Athens, GA: The University of Georgia.
Thomas, J. N., Jackson, K., Johnson, H. L., & Fish M. C. (2014, April). Perspectives on linking research and practice: Thoughts from the field. Highlighted, invited symposium for the National Council of Teachers of Mathematics’ Annual Research Conference, New Orleans, LA.
Johnson, H. L. (2013, August). Session 3 – Quantitative reasoning. Paper presentation for the Waterbury Summit. University Park, PA: The Pennsylvania State University.
Johnson, H. L. (2013, June). Using images of intensive and extensive quantity to extend a covariation framework. Research presentation for the Algebraic Reasoning Conference. Athens, GA: The University of Georgia.
Johnson, H. L. (2011, February). Making sense of rate of change: Characterizing students’ reasoning. Online presentation for a graduate seminar on quantitative reasoning and mathematical modeling in the sciences. Laramie, WY: The University of Wyoming.