Even simple technologies can provide important support for the inquiry process. Hand lenses and other magnifiers are ubiquitous technologies in the science classroom. In the following activity, children learn how to use a simple hand lens. They draw what they can see with the naked eye and then what they see with a tool. By comparing representations, children may begin interpreting the differences in what they are able to see and begin to understand how that difference helps us make observations in science. In addition, the activity provides teachers with a basic assessment of children’s ability to use the tool, represent the images, and make sense of what they are seeing.