Symbolism The Uraeus is a symbol for the goddess Wadjet. She was one of the earliest Egyptian deities and was often depicted as a cobra, as she is the serpent goddess. The center of her cult was in Per-Wadjet, later called Buto by the Greeks. She became the patroness of the Nile Delta and the protector of all of Lower Egypt.
Rigor is something strict, severe or demanding. 1  Harsh and strict treatment in the military for cadets is an example of rigor. 2  Freezing weather and ice are examples of the rigors of winter.  Difficult and challenging academic courses are an example of academic rigor.
International Center for Leadership in Education. The Rigor/Relevance Framework is a tool developed by staff of the International Center to examine cur-. riculum, instruction, and assessment. The Rigor/Relevance Framework is based on two dimensions of. higher standards and student achievement.