All humans use objects in their environment as tools for actions. Some tools are more useful than others for certain people and populations. This paper describes how different first-graders used handheld computers as tools when writing. While all 17 children in the observed classroom were competent users of their handheld computers, their use of handhelds for pre-writing differed among the students. Some students' thinking was clearly enhanced with the use of handhelds before writing. Other students showed writing competence without referring back to their pre-writing work on the handheld. No students were unable to operate their handhelds in the pre-writing process.