### Research that went into Ms. Lindquist: The Free Algebra Word Problem Tutoring Software

I have spent 4 years working on nothing but studying how to teach
students to write algebra expressions given a word problem. This
task is very important since a student can't make any use of all the
algebra symbolic manipulation skills unless she can translate real
world problems into the language of algebra.
I have studied how to make tutoring software that will help students
learn this skill. A good place to start is this paper.

######
Heffernan, N. T., & Koedinger, K. R. (Accepted at the
Intelligent Tutoring Systems 2000 Conference Workshop entitled "Intelligent
Tutoring Systems Conference's Workshop in Algebra Leaning"). *
Building a 3rd generation ITS for symbolization: Adding a Tutorial
Model with Multiple Tutorial Strategies*.
(postscript .ps -11
pages)
(web page version)

I have studied what make these problems so hard. See the following
paper.

###### Heffernan, N. T. & Koedinger, K. R. (1998). A developmental
model for algebra symbolization: The results of a difficulty factors
assessment. In *Proceedings of the Twentieth Annual Conference of
the Cognitive Science Society*, (pp. 484-489). Hillsdale, NJ:
Erlbaum.
(postscript .ps),
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