Technology to support Mobile Computer Supported Collaborative Learning (MCSCL) is a compromise between screen space and mobility. While MCSCL usually leverages small portable screens, such as tablets or smartphones, large interactive tabletops have been found to effectively support collaborative learning. In this case study, we strike a compromise by using small portable screens on a large static surface by using dynamic peephole interactions. The proposed technology allows learners to augment static surfaces, such as paper maps, by sliding a tablet or a smartphone on it. A comparative exploratory study was conducted on eight groups of four K12 students. Results point to enhanced cognitive awareness among group members. a