**Presentations**

**Spring 2018**

Hackenberg, A. J. (2018, April). *Inverse reasoning with quantitative unknowns. *Presentation within the symposium organized by M. Simon at the annual Research Conference of the National Council of Teachers of Mathematics (NCTM), Washington DC.** **

Hackenberg, A. J., Jones, R., Borowski, R., Aydeniz, F., & Matyska, R. (2018, April). *Differentiating linear function instruction for 8th grade students. *Paper presentation at the Research Conference of the NCTM, Washington, DC.** **

**Fall 2017**

Hackenberg, A. J. Aydeniz, F., Jones, R., & Borowksi, R. (2017, October). *Students’ meaning for extensive quantitative unknowns.* Paper presentation at the annual conference of the North American Chapter of the International Group for the Psychology of Mathematics Education (PME-NA), Indianapolis, IN.

Jones, R., Aydeniz, F., & Hackenberg, A. J. (2017, October). *Exploring differentiation with middle school teachers*. Poster presentation at the annual conference of PME-NA, Indianapolis, IN.

Tillema, E. S., & Hackenberg, A. J. (2017, October). *The first research program: What it looks like in middle school.* Invited discussant talk given at the annual conference of PME-NA, Indianapolis, IN.

Hackenberg, A. J., & Norton, A. H. (2017, October). *Units coordination across whole numbers, fractions, and early algebra*. Invited keynote presentation given at the annual US Mathematics Recovery Council (USMRC) conference, St. Paul, MN.

Jones, R., Johannisson, M., Hackenberg, A., & Borowski, R. (2017, November). *Two heads are better than one: Differentiating instruction in a middle school classroom through a teacher-researcher partnership.* Presentation given at the annual Indiana Council of Teachers of Mathematics (ICTM) conference in Indianapolis, IN.

**Fall 2016**

Jones, R.J., Arnold, S., Navin, A., Walsh, P., & Hckenberg, A. J. (2016, November). *Lessons to differentiate instruction for middle school students*. Presentation given at the annual Indiana Council of Teachers of Mathematics (ICTM) conference in Indianapolis, IN.

**Summer 2016**

Hackenberg, A. J., Jones, R., Borowski, R., & Suksak, S. (2016, July). *Seventh grade students' meanings of division with fractions and unknowns*. Paper presentation at the International Congress of Mathematics Education, Hamburg, Germany.

**Spring 2016**

Hackenberg, A. J. (2016, April). *Students’ meanings of division with fractions and unknowns. *Presentation within the symposium organized by A. Izsak & S. Beckmann at the annual Research Conference of the National Council of Teachers of Mathematics (NCTM), San Francisco, CA.

Hackenberg, A. J., Creager, M., Eker, A., & Lee, M. L. (2016, April). *Understanding how to differentiate instruction for middle school students. *Paper presentation at the Research Conference of the NCTM, San Francisco, CA.** **

- Slides from 2016 NCTM presentation,
*Understanding how to differentiate instruction for middle school students*. - Handout from 2016 NCTM presentation,
*Understanding how to differentiate instruction for middle school students* - Paper from 2016 NCTM presentation,
*Understanding how to differentiate instruction for middle school students*

**Fall 2015**

Hackenberg, A. J., Eker, A., & Creager, M. (2015, November). *Differentiating mathematics instruction with middle school students*. Poster presented at the annual conference of the North American Chapter of the International Group for the Psychology of Mathematics Education (PME-NA), East Lansing, MI.

Jones, R.J. & Eker, A. (2015, November). *Pieces of the puzzle: learning from differences in students drawing, notating and explaining fractional relationships*. Poster presented at the annual conference of the North American Chapter of the International Group for the Psychology of Mathematics Education (PME-NA), East Lansing, MI.

Hackenberg, A. J., Creager, M., Jones, R. J., Eker, A., Timmons, R., Johannisson, M., & Walsh, P. (2015, October). *Differentiating instruction with middle school students*. Presentation given at the annual Indiana Council of Teachers of Mathematics (ICTM) conference in Indianapolis, Indiana.

**Spring 2015**

Hackenberg, A. J. (2015, April). *Learning fractional knowledge from students.* Presentation within the symposium organized by P. Matthews & C. C. Williams, *Fractions learning: One subject, multiple perspectives* at the annual conference of the American Educational Research Association (AERA) in Chicago, IL.

Hackenberg, A. J., Jones, R., Eker, A., Creager, M., & Timmons, R. (2015, April). *“Approximate” multiplicative relationships between quantitative unknowns*. Paper presentation at AERA in Chicago, IL.

Hackenberg, A. J., & Sevis, S. (2015, April). *On a learning trajectory for reciprocal reasoning with quantitative unknowns.* Paper presentation at AERA in Chicago, IL.

Lee, M. Y., & Aydeniz, F. (2015, April). *Investigating a student’s distributive partitioning scheme: The case of Gabriel.*** **Paper presentation at AERA in Chicago, IL.

Hackenberg, A. J., Eker, A., & Creager, M., Jones, R. J. (2015, March). *Differentiating mathematics instruction with middle school students: Findings in progress. *Presentation given at the fifth annual Indiana Mathematics Education Research Symposium (IMERS), Indianapolis, Indiana.

Hackenberg, A. J., Jones, R. J., Eker, A., & Creager, M. (2015, February). *Differentiating mathematics instruction with middle school students: Findings in progress. *Presentation given at the fifth annual Curriculum and Instruction Research and Creativity Activity Symposium (CIRCAS), Bloomington, Indiana.

**Fall 2014**

Hackenberg, A. J., Aydeniz, F. A., Eker, A., & Jones, R. (2014, October). *Investigating differentiated instruction and algebraic reasoning in middle school.* Presentation at the Regional Conference of the National Council of Teachers of Mathematics (NCTM), Indianapolis, IN.

Jones, R. J., Hackenberg, A. J., & Eker, A. (2014, October). *Overview of IDR2eAM Project.* Poster at the session organized by the Center for Research on Learning with Technology (CRLT), Bloomington, IN.

**Spring 2014**

Hackenberg, A. J. (2014, April). *The construction of quantitative reciprocal reasoning. *Presentation within the symposium organized by D. Liss, D. and H. Y. Lee, *Elaborations on the construction of quantitative and algebraic reasoning, *at the annual Research Conference of the NCTM, New Orleans, LA.

Hackenberg, A. H., Jones, R., Sevis, S., Eker, A., Aydeniz, F., Uzan, E., & Creager, M. (2014, February). *Investigating differentiated mathematics instruction in middle school*. Presentation given at the fourth annual CIRCAS, Bloomington, Indiana.

**Fall 2013**

Hackenberg, A. H., Aydeniz, F., Eker, A., Jones, R., & Uzan, E. (2013, October). *Investigating differentiated instruction in middle school*. Presentation given at the annual Indiana Council of Teachers of Mathematics (ICTM) conference in Indianapolis, Indiana.