In this paper, we derived design guidelines
for mobile computing from the informal
education and education technology literatures.
he initial part of the paper will orient readers
to placed-based learning and location awareness
for mobile computers. Next, we discuss three
empirically-derived design guidelines with
implications for mobile computing. Last, we link
theory to practice with an example—the Tree
Investigators project that used mobile computers
to support science learning about trees and
lowering plants in an outdoor Arboretum.