### CONFERENCE PRESENTATIONS

2023

Donovan, C., Johnson, H. L., Bechtold, L., Knurek, R., & Whitmore, K. (2023, May. A Rasch analysis of a measure of graph selection and reasoning for dynamic situations. *Paper presented at the annual meeting of the American Educational Research Association, Online.*

Donovan, C., Johnson, H. L., Bechtold, L., Whitmore, K., & Knurek, R. (2023, April). Modeling a relationship between students’ graph selection and reasoning. *Paper presented at the annual meeting of the American Educational Research Association, Chicago, IL.*

Carter, J., Olson, G., Nie, B., Tsinnajinnie, B., & Johnson, H. L. (2023, August). Implementing techtivities to promote covariational reasoning and instructional transformation in college algebra. *MAA Math Fest. *Tampa, FL.

Johnson, H. L., Donovan, C., Knurek, R., Whitmore, K., & Bechtold, L. (2023, March). A link between students’ graph reasoning and their attitudes toward mathematics and graphs. *ICMI Symposium on Mathematics Education and the Socio-Ecological*. Online.

2022

Olson, G., Nie, B., Carter, J., Tsinnajinnie, B., & **Johnson, H. L.** (2022, August). Enhancing STEM pathways by fostering students’ reasoning in College Algebra. *MAA Math Fest. *Philadelphia, PA.

Olson, G., Nie, B., Carter, J., Tsinnajinnie, B., & **Johnson, H. L.** (2022, August). Implementing Techtivities to Promote Covariational Reasoning and Instructional Transformation in College Algebra. *MAA Math Fest. *Philadelphia, PA.

2021

Johnson, H. L., Olson, G., McClintock, E., Mesa, V., & Rasmussen, C. (2021). Theorizing departmental change in early undergraduate math courses: Leveraging digital resources to influence practice. *Transforming Institutions 2021 Virtual Conference, *https://ascnhighered.org/ASCN/transforming_institutions/2021/index.html

**INVITED PRESENTATIONS**

2023

Johnson, H. L. (2023, March). Modeling a relationship between college algebra students’ graph selection and graph reasoning. *Florida International University Mathematics Education Seminar*. Online.

Johnson, H. L. (2023, April). Modeling a relationship between college algebra students’ graph selection and graph reasoning. *Colorado State University Mathematics Education Seminar*. Fort Collins, CO.

Johnson, H. L., Tsinnajinnie, B., Olson, G., & Bechtold, L. (2023, April). Boundary transitions within, across, and beyond a set of digital resources: Brokering in college algebra. *Oklahoma University Research in Undergraduate Mathematics Education Seminar*. Online.

2022

Johnson, H. L. (2022, June). Growing a college algebra community of transformation. *Sync On*. Boulder, CO.

Johnson, H. L. (2022, March). Modeling a relationship between students’ covariational reasoning and their graph selection. *Texas State Mathematics Colloquium*. San Marcos, TX.

2020

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 videoconference).

**SEMINAR**

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 videoconference).

## CONFERENCE PRESENTATIONS

2023

Donovan, C., Johnson, H. L., Bechtold, L., Knurek, R., & Whitmore, K. (2023, May. A Rasch analysis of a measure of graph selection and reasoning for dynamic situations.

Paper presented at the annual meeting of the American Educational Research Association, Online.Donovan, C., Johnson, H. L., Bechtold, L., Whitmore, K., & Knurek, R. (2023, April). Modeling a relationship between students’ graph selection and reasoning.

Paper presented at the annual meeting of the American Educational Research Association, Chicago, IL.Carter, J., Olson, G., Nie, B., Tsinnajinnie, B., & Johnson, H. L. (2023, August). Implementing techtivities to promote covariational reasoning and instructional transformation in college algebra.

MAA Math Fest.Tampa, FL.Johnson, H. L., Donovan, C., Knurek, R., Whitmore, K., & Bechtold, L. (2023, March). A link between students’ graph reasoning and their attitudes toward mathematics and graphs.

ICMI Symposium on Mathematics Education and the Socio-Ecological. Online.2022

Olson, G., Nie, B., Carter, J., Tsinnajinnie, B., &

Johnson, H. L.(2022, August). Enhancing STEM pathways by fostering students’ reasoning in College Algebra.MAA Math Fest.Philadelphia, PA.Olson, G., Nie, B., Carter, J., Tsinnajinnie, B., &

Johnson, H. L.(2022, August). Implementing Techtivities to Promote Covariational Reasoning and Instructional Transformation in College Algebra.MAA Math Fest.Philadelphia, PA.2021

Johnson, H. L., Olson, G., McClintock, E., Mesa, V., & Rasmussen, C. (2021). Theorizing departmental change in early undergraduate math courses: Leveraging digital resources to influence practice.

Transforming Institutions 2021 Virtual Conference,https://ascnhighered.org/ASCN/transforming_institutions/2021/index.htmlINVITED PRESENTATIONS2023

Johnson, H. L. (2023, March). Modeling a relationship between college algebra students’ graph selection and graph reasoning.

Florida International University Mathematics Education Seminar. Online.Johnson, H. L. (2023, April). Modeling a relationship between college algebra students’ graph selection and graph reasoning.

Colorado State University Mathematics Education Seminar. Fort Collins, CO.Johnson, H. L., Tsinnajinnie, B., Olson, G., & Bechtold, L. (2023, April). Boundary transitions within, across, and beyond a set of digital resources: Brokering in college algebra.

Oklahoma University Research in Undergraduate Mathematics Education Seminar. Online.2022

Johnson, H. L. (2022, June). Growing a college algebra community of transformation.

Sync On. Boulder, CO.Johnson, H. L. (2022, March). Modeling a relationship between students’ covariational reasoning and their graph selection.

Texas State Mathematics Colloquium. San Marcos, TX.2020

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 videoconference).SEMINARJohnson, 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 videoconference).