Karen Koellner
Hunter College
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Featured researches published by Karen Koellner.
Archive | 2011
Karen Koellner; Jennifer Jacobs; Hilda Borko; Sarah Roberts; Craig Schneider
The Problem-Solving Cycle (PSC) model of mathematics Professional Development (PD) seeks to enhance teachers’ knowledge and skills in a variety of domains. In this paper we consider how participating in the PSC program, with a specific focus on algebra, impacted one teachers’ instructional practice. We explore the nature of change in the teacher’s classroom, as well as the connection between these changes, the focus of our PD, and the teacher’s intentions. Our analyses are based on a set of videotaped classroom lessons collected over two years, along with interviews and written reflections. We conclude that there was a close match between the teacher’s personal goals for improvement and our program goals, and notable shifts in his algebra instruction that was likely to have supported his students’ algebraic reasoning.
Zdm | 2011
Hilda Borko; Karen Koellner; Jennifer Jacobs; Nanette Seago
Archive | 2009
Tomáš Janík; Tina Seidel; Peter Bowman; Geraldine Blomberg; Hilda Borko; David Clarke; Inger Marie Dalehefte; Erin Marie Furtak; Constanze Herweg; Dana Hübelová; Jennifer Jacobs; Marcela Janíková; Kirsti Klette; Eckhard Klieme; Petr Knecht; Mareike Kobarg; Karen Koellner; Milan Kubiatko; Peter Labudde; Cameron Mitchell; Petr Najvar; Veronika Najvarová; Christine Pauli; Manfred Prenzel; Kurt Reusser; Rolf Rimmele; Kathleen J. Roth; Katharina Schwindt; Simona Šebestová; Richard J. Shavelson
Teacher Education Quarterly | 2009
Lyn Swackhamer; Karen Koellner; Carole Basile; Doris R. Kimbrough
Mathematical Thinking and Learning | 2007
Karen Koellner; Jennifer Jacobs; Hilda Borko; Craig Schneider; Mary Pittman; Eric Eiteljorg; Kim Bunning; Jeffrey Frykholm
Mathematics Teacher Education and Development | 2011
Karen Koellner; Jennifer Jacobs; Hilda Borko
The Journal of Mathematical Behavior | 2014
Hilda Borko; Karen Koellner; Jennifer Jacobs
Teaching Exceptional Children | 2011
Karen Koellner; Melissa Colsman; Rachael Risley
Archive | 2007
Jennifer Jacobs; Hilda Borko; Karen Koellner; Craig Schneider
Language arts | 2015
Amy Johnson Lachuk; Karen Koellner