The MƒA model is informed by core theories about teaching and learning. MƒA uses the Teaching for Robust Understanding (TRU) Framework to foster a shared vision and language for high-quality instruction among teachers in its program.   
  
The TRU framework states five dimensions of classroom instruction that are necessary and sufficient to help students become deep and flexible thinkers in STEM. These dimensions can be adapted for teacher learning environments and characterize important aspects of MƒA workshops and best practices for facilitation.

Source: truframework.org

For more information on the TRU framework and for resources to apply these dimensions in your own classrooms, see https://truframework.org/.