Olanoff, D., Tobias, J. M., Bajwa, N., Thanheiser, E., Welder, R. M., and Feldman, Z. (2020, February). Tasks for Teachers: Approaches to the Design of Tasks for Preservice and Inservice Learners. Presentation for the 24th Annual Conference of the Association of Mathematics Teacher Educators. Phoenix, AZ, February 2020.

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.
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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.
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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.
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Hillen, A., Olanoff, D., & Welder, R. M. (2015, April). Moving Beyond Common Denominators: Comparing Fractions Using Reasoning and Sense-Making. Workshop presented at the National Council of Teachers of Mathematics Annual Meeting. Boston, Massachusetts.
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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.
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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.
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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.
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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.
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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.
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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.