Understanding Students' Problem-Solving Knowledge through Their Writing
The Curriculum and Evaluation Standards for School Mathematics, published in 1989 by NCTM, placed an emphasis on the importance of communication for learning and doing mathematics. Writing is one way to achieve this valuable communication in the classroom. In 2000, Principles and Standards for School Mathematics emphasized writing as being an important aspect of communication: “Writing in mathematics can also help students consolidate their thinking because it requires them to reflect on their work and clarify their thoughts about the ideas developed in the lesson' (NCTM 2000, p. 61). Several studies have also shown ways that writing can be an effective tool for improving students' learning of mathematics (Bell and Bell 1985; Pugalee 2001; Steele 2005). Pugalee (2001) found in his work with students that writing could potentially help students increase their problemsolving ability in mathematics.