Previous research on algebra word problems revealed that students
usually could not use a solution of a problem to solve a related
problem that required a slight modification of the solution. In an
attempt to improve performance on related problems, students were given
practice on either filling in tables or using completed tables.
Practice on entering values in tables did not improve performance
because students lacked the domain specific knowledge to correctly
enter the values. Students' use of completed tables resulted in
improved performance when tables were provided, but did not result in
an improvement on generalization problems in which no tables were
given. These findings were discussed within the context of a
hierarchical classification scheme which describes the relationship
between two related problems. In addition, the instructional
implications of the study were considered and suggestions are offered
for improving the instructional procedures.