This article focuses on one common type of many different classroom discussions, open-strategy sharing (OSS), because it offers a starting point for teachers new to mathematical discussions. The goal of an OSS discussion is to explore multiple possible ways to solve a single mathematical task. Students share strategies, listen to others'…

In this article, the authors describe the Japanese term "bansho," which refers to the intentional use of board space for facilitating student learning. Bansho offers a structure for sequencing mathematics visually on the board. By purposefully organizing the board space alongside the lesson, teachers can provide students with a framework…

The first author's initial attempts at a whole-class mathematics discussion were woefully dysfunctional. Ten second graders showing their answers to a missing addend question about the number of children left riding a school bus did not result in the mathematical epiphany that the textbook promised. She did not give up on using mathematical…

This article describes how a teacher in Mexico City worked with two researchers on an instructional design project to help kindergartners become proficient in participating in whole-class mathematical conversations.

In the mathematics classroom, making sense of story problems can be a challenge for all students. Strategies that promote student discourse offer teachers one way to support their students' sense-making processes. In this article, the authors present a mathematical discourse strategy that was introduced to elementary school teachers during Project…

Learning through meaningful problem solving is integral in any successful mathematics program (Carpenter et al. 1999). The National Council of Teachers of Mathematics (NCTM) promotes the use of problem solving as a means to deepen understanding of all content areas within mathematics (NCTM 2000). This article describes a first-grade lesson that…

To better understand how teachers can capitalize on the power of story problems, Jacobs and Ambrose analyzed teacher-student conversations in problem-solving interviews. They identified eight categories of teacher moves that, when timed properly, were productive in advancing mathematical conversations. (Contains 2 tables.)

This article presents the results of research about students' and teachers' use of an interaction framework (THINK) to guide group communication about problem solving. Students who used the THINK framework demonstrated greater gains in problem-solving achievement than students who did not use the framework.

Phyllis Whitin was interested in the role of communications in developing mathematical understanding among children. She designed a problem-posing explorations system, which encouraged children to think, question, solve problems and discuss their ideas, strategies and solutions.

Suggests some questions and prompts that teachers can adapt and use to promote mathematical power in their students. Argues that asking children to share their strategies for solving problems is a simple but powerful learning tool for promoting understanding. Presents four classroom vignettes as an example. (ASK)

Teacher should strive to be more than the authority in the classroom identifying right versus wrong relating to problem solving. Identifying and emphasizing what aspects of an answer are mathematically correct improves students' confidence to tackle challenging problems and they view themselves as mathematical problem solvers.

Argues that encouraging talking among young learners in the classroom is one of the best ways to foster learning. Presents incidents which illustrate that children naturally use language to report on experiences, collaborate toward agreed ends, project into the future, focus on causal and dependent relationships, create and discuss problems,…