This chapter focuses on the KOM-framework’s aids and tools competency and investigates its application in the digital era for mathematical learning. The aids and tools competency may be viewed as distinguishing between more classical material or physical tools (e.g., centicubes, rod systems, abacuses, rulers, compasses, protractors, specially lined paper, cardboard for folding or cutting) and digital tools (e.g., calculators, computers and mathematical software, such as computer algebra systems and dynamic geometry environments). Although this distinction seems straightforward, new software somewhat blurs the picture, since now several virtual manipulatives serve the purpose of illustrating and explaining physical manipulatives. The chapter suggests a potential networking of the aids and tools competency with, on the one hand, the theoretical constructs of instrumental genesis and on the other hand, embodied cognition as manifested through the newly suggested idea of embodied instrumentation. A series of examples is provided to illustrate the potential of applying these theoretical frameworks in connection with each other.