TKE’s Mission Statement. The Knowledge Exchange(TKE) is a 501(c)(3) nonprofit corporation. The Knowledge Exchange (TKE) exists to deliver holistic, evidence-based educational services that empower individuals and promote lifelong learning, fostering an inclusive global community. About TKE. We are a diverse group of professionals in many fields such as education, engineering, healthcare, business, and finance. We specialize in K-12 education (gen...