A complete, copy-and-go integration course for First-Year Calculus / AP Calculus AB. The workbook is organized into 12 concise chapters, each following a tight loop—short lesson notes, 5 Solved Examples, then 15 Practice Exercises—and closes with a consolidated Answer Key for rapid feedback and reteach. Students progress from Riemann sums and partitions to the definite integral as a limit, Darboux upper/lower sums and integrability, core properties, piecewise/step-function integrability, F