Final answer:
The first stage in Lewin's Change Theory is Unfreezing, which creates awareness and the necessary buy-in for the change process.
Step-by-step explanation:
The first stage in Lewin's Change Theory is called Unfreezing. This stage is crucial as it prepares the individuals involved to be open to change by challenging existing beliefs and behaviors, creating an awareness of the need for change, and building a strong coalition to support the change effort. It involves communicating the vision for change and the necessity of acting differently, thereby creating motivation to move away from the current status quo.