“All life is problem-solving”, is how Karl Popper the 20th-century philosopher describes the evolution of knowledge and learning. In fact, every activity in the natural and human world is a process towards identifying and building solutions. Even purposeless play serves as a form of practice of being physically and psychologically flexible and robust. It is an aspect of learning, giving variation of experiences and responses that prepares the young for future aggressive encounters. Read the module to learn how young children can be nurtured to develop complex problem solving, critical thinking, and collaborative creativity. This module is primarily helpful for primary school educators who can help kids develop/nurture the 3C's of 21st-century skills which are complex problem solving, critical thinking, and collaborative creativity.