Burns, M. (1995). Writing in math class: a resource for grades 2-8. Math Solutions: Sausalito, CA.

Presents a clear and persuasive case for making writing a part of math instruction. Explains why students should write in math class, describes five different types of writing assignments for math, and offers a variety of teaching tips and suggestions. In her usual engaging style, Marilyn Burns tells what happened in actual classrooms when writing was incorporated into math lessons. Illustrated throughout with student work, this is an invaluable and inspiring resource. 208 pages (http://www.amazon.com/Writing-Math-Class-Resource-
Grades/dp/0941355136).

Janzen, H. (2005). Integrating writing into the mathematics classroom. In Teaching Today. Retrieved August 17, 2007.  http://www.glencoe.com/sec/teachingtoday/subject/int_writing_math.phtml.

Silbey, R. (2005). Math outloud! Heard the word? Talking and writing about math boosts understanding in a big way. In Scholastic Instructor. Retrieved August 17, 2007. http://content.scholastic.com/browse/article.jsp?id=3585.

University of Puget Sound. Using writing in mathematics.  http://www2.ups.edu/community/tofu/lev2/journaling/writemath.htm