Bajwa, N., Welder, R. M., Feldman, Z., Olanoff, D., Tobias, J. M., and Thanheiser, E. (2019, February). *Fostering Representational Fluency: Deepening Prospective Teachers’ Understanding of Multiplication*. Presentation for the 23rd Annual Conference of the Association of Mathematics Teacher Educators. Orlando, FL, February 2019.

Olanoff, D., Bajwa, N., Feldman, Z., Thanheiser, E., Welder, R. M., & Tobias, J. M. (2018, November). *Using the Array Model to Develop Prospective Teachers’ Understanding of Multiplication and its Properties*. Poster presentation for the 40th Annual Conference of the North American Chapter of the International Group for the Psychology of Mathematics Education. Greenville, SC: South Carolina University.

Tobias, J. M., & Olanoff, D. (2018). *Designing Tasks for Mathematics Content Courses for Prospective Teachers*. Presentation for the 2nd Northeastern Research in Undergraduate Mathematics Education Conference. New Brunswick, NJ.

Tobias, J. M., Feldman, Z., Welder, R. M., Dana Olanoff, D. (2017, February). *Fraction Learning Trajectories in Content Courses for Prospective K-8 Teachers*. Presentation at the 21st Annual Conference of the Association of Mathematics Teacher Educators. Orlando, Florida.

SLIDES | HANDOUT

Olanoff, D., Feldman, Z., Welder, R. M., Tobias, J. M., Thanheiser, E., Hillen, A. (2016, November). *Greater Number of Larger Pieces: A Strategy to Promote Prospective Teachers’ Fraction Number Sense Development*. Presentation at the 38th Annual Conference of the North American Chapter of the International Group for the Psychology of Mathematics Education. Tucson, Arizona.

SLIDES | HANDOUT

Welder, R. M., Tobias, J. M., Feldman, Z., Hillen, A., Olanoff, D., & Thanheiser, E. (2015, November). *Modifying Children’s Tasks into Cognitively Demanding Task for Preservice Elementary Teachers*. Presentation for the 37th Annual Conference of the North American Chapter of the International Group for the Psychology of Mathematics Education. East Lansing, MI: Michigan State University.

SLIDES

Tobias, J. M., Hillen, A., Olanoff, D., Welder, R. M., Thanheiser, E., & Feldman, Z. (2015, February). *Using Reflective Analysis to Modify Mathematical Tasks After Enactment*. Presentation at the 19th Annual Conference of the Association of Mathematics Teacher Educators. Orlando, Florida.

SLIDES

Olanoff, D., Hillen, A. F., Tobias, J. M., Welder, R. M., Thanheiser, E., & Feldman, Z. (July 2014). *Facilitating Prospective Teachers’ Fraction Number Sense Development Through Problem Solving and Problem Posing*. Short oral presentation at the 38th Annual Conference of the International Group for the Psychology of Mathematics Education. Vancouver, CA: University of British Columbia.

SLIDES

Feldman, Z., Tobias, J. M., Olanoff, D., Thanheiser, E., Hillen, A. F., & Welder, R. M. (July 2014). *Prospective Elementary Teachers’ Analysis of Student Thinking*. Short oral presentation at the 38th Annual Conference of the International Group for the Psychology of Mathematics Education. Vancouver, CA: University of British Columbia.

SLIDES

Olanoff, D., Hillen, A., Thanheiser, E., Welder, R. M., Feldman, Z., & Tobias, J. M. (2014, June). *Modifying Children’s Mathematical Tasks for Use in Inquiry-Based Learning Content Courses for Prospective Elementary Teachers*. Presentation at the 17th Annual Legacy of R.L. Moore—Inquiry-Based Learning Conference. Denver, Colorado.

SLIDES | HANDOUT

Hillen, A., Olanoff, D., Welder, R. M., Feldman, Z., Tobias, J. M. & Thanheiser, E. (February 2014). *Modifying Children’s Mathematical Tasks for Use in Content Courses for Prospective Elementary Teachers. *Extended Session (Workshop) at the 18th Annual Conference of the Association of Mathematics Teacher Educators. Irvine, California.

SLIDES | HANDOUT

Thanheiser, E., Hillen, A., Olanoff, D., Feldman, Z., Welder, R. M., & Tobias, J. M. (November 2013). *Task Design in Mathematics Content Courses for Preservice Elementary Teachers: A Collaborative Approach. *Presentation at the 35th Annual Conference of the North American Chapter of the International Group for the Psychology of Mathematics Education. Chicago, Illinois.