The Active Brain (Book 1) is a systematically sequenced mathematical exposition from 'The Precious Jewels of Mrs. "G"' collection of offerings. It has been thoughtfully created for the benefit of people of all ages-beginning with the universal child-not forgetting their mentoring counterparts dedicated to intellectual wellness and education. It is a graphic presentation of mathematical wisdom, color-defined to bring forth precise concepts, their patterns, and relationships. This edition, in particular, focuses upon the very first step along the hierarchical sequence of mathematical evolution-The Number Concepts. The Active Brain is a series of volumes that seeks to systematically present precise concepts, and their ever-evolving patterns and relationships in order to keep the brain-mind stimulated along its encounters of exploration, discovery, and interactivity with the universe. The world of relationships and relativity begins to evolve from the very inception of life. Our early childhood sensory experiences associated with practical life-impressions, no doubt, initiate in setting a concrete foundation towards the cultivated recognition of all things and events as phenomena, in existence. Underlying these, indeed, are the secrets to discovery-by way of concepts, patterns, and relationships-that signify our world of interdependence. Hence, it is important that we continually strive to remain centered-through each phase in our lives-so that we may sustain an acute vision and understanding of our dynamic world of changing phenomena. However, shared knowledge in partnership with selflessly mentoring counterparts and their unrelenting guidance is pivotal to the process of learning. How best may we relate to change while we persist with the effort to consciously and conscientiously interact with our dynamic world? The brain-mind awaits stimulation incessantly. It must remain sparked to direct and execute its various vital functions with respect to the body, and its environment. Accordingly, The Active Brain is a series of enlightening and stimulating presentations focused upon the cultivation, advancement, and preservation of the intellect while aiding the cause of 'engaged partnerships in learning'. The color-defined exercises in this edition-The Active Brain (Book 1)-are intended to keep the brain-mind interactively nourished and inspired by means of hand-eye coordinated, intellectually energized activity so that we may expediently reach out to all ages. Considered overall, engagement in collaboration, as a modeled life-experience-quite contrary to being a lesson of teaching-is the flame that kindles and sustains the light of knowledge to enliven the intellect, eventually to keep our hard-wired mind, the human brain, actively sharp.