In this lesson, we explore how the definite integral represents the net change of a quantity over an interval. You’ll learn how to interpret integrals as accumulation, connect rate and total change, and apply this concept to real-world problems involving motion, growth, and more — all with step-by-step guidance. ✅ What you’ll learn: How integrals represent total or net change Applying ∫ rate = total change Motion problems with velocity and displacement Real-world applications and units How this connects to the Fundamental Theorem of Calculus 📌 Perfect for: AP Calculus AB students College Calculus I courses Conceptual understanding of integrals Homework help and test prep 🔥 Subscribe for more: Complete Calculus I & II lessons Applications of derivatives and integrals Calm, clear, and step-by-step math help 🖥 More from XO Math: Calm. Clear. Step-by-step. #NetChange #IntegralAsNetChange #DefiniteIntegral #Calculus1 #APCalculusAB #MotionProblems #MathHelp #TestPrep #XOMath