One of the biggest issues of traditional education is the lack of high-quality teachers. With AI technology, it can enable the new generation of teachers to teach student more effectively. Squirrel AI Learning has created an AI-powered adaptive learning engine to make kids ten times more knowledgeable than before. 4 years after its establishment, it has grown into an AI+education Unicorn. This presentation will illustrate how Squirrel AI uses its framework of Model of thinking, Capacity, Methodology (MCM), Multi-dimensional Probabilistic Knowledge State Model (PKS), Multimodal Integrated Behavioral Analysis (MIBA), Nano-scaled knowledge components (NKC) and other innovations to advance the AI+ Adaptive Education.