An increasing number of K-12 school teachers have been using handheld, or palmtop, computers in the classroom as an integral means of facilitating education due to the flexibility, mobility, interactive learning capability, and comparatively inexpensive cost. This study involved two experiments in handheld computers: (a) a comparison of the process of learning English spelling in fourth grade students using handheld computers and fourth grade students who did not use handheld computers, and (b) a comparison between the test results of fifth grade students' dividing fractions using handheld computers and fifth grade students dividing fractions using paper-and-pencil. The results revealed that fourth grade students who used handheld computers to learn spelling had significantly higher test scores than those students who learned spelling without handheld computers. Fifth grade students who used handheld computers when taking a dividing fractions test scored significantly higher than those students who used paper-and-pencil for the same test. This study concluded that handheld devices could be an addition to learning technologies in elementary schools. (Contains 2 tables.)