Algebra is the gateway to higher education, and preparing students to grasp algebraic concepts increases their opportunities to succeed. This book shows teacher how to create a strong foundation in algebra for very young children. Using in-depth math explorations, the author unpacks, step-by-step, the hidden connections to higher algebra. Each exploration contains an elegantly simple grade-banded lesson (on addition, subtraction, patterns, and odd and even numbers), followed by a discussion of the algebraic connections in the lesson, as well as suggestions for additional problems to explore. Throughout, readers will find clear explanations of algebraic connections, specific strategies for teaching the key ideas of algebra, lesson modifications for older or younger students, and an array of age-appropriate problems, games, and lessons.