CM2, or "Cognitive Model 2," is a framework used in artificial intelligence to simulate human-like reasoning and decision-making. It focuses on understanding how humans process information, learn from experiences, and adapt to new situations. This model helps researchers and developers create more intuitive AI systems that can interact effectively with users. In the context of education, CM2 can also refer to the second year of the French primary school system, where students typically range from 7 to 8 years old. During this year, children build on foundational skills in subjects like math, reading, and writing, preparing them for more advanced learning in subsequent grades.