This document proposes a new way to represent learning designs (LDs) that depicts how they are enacted in authentic technology-enhanced learning (TEL) settings. It suggests using "atomic patterns" to represent how different elements of a LD, such as tasks and tools, are combined during enactment. The representation was initially used by researchers to analyze teacher practice, but could now be explored for specifying LDs in more detail or for teacher use. Preliminary evidence suggests teachers found atomic patterns useful for enriching their own LDs and that they help make the enactment of LDs more explicit and shareable. Open questions remain around how practitioners might adopt this representational approach.