Rigour is synonymous to extreme thoroughness, meticulousness, strictness, and carefulness. Often, educators equate rigour with difficulty. However, academically rigorous learning experiences mean sufficient and appropriate challenge for students, not simply difficult. Rigorous experiences motivate students to learn more and learn it more deeply, while giving them a sense of personal achievement when they overcome the learning challenge. Lessons that are simply difficult will more likely lead to disengagement, resentment, and frustration (Glossary of Educational Reform).