Module 7 — Average Rate of Change and the Secant-to-Tangent Idea
Calculate average rate of change over an interval, connect it to secant slope, and see how shrinking the interval approaches the tangent, numerically first, with the symbolic version saved as Lesson 8
30 questions, easiest → hardest
30 auto-graded
Full worked solutions
Winny Score tracks mastery
Work through every question after Lesson 7. Wrong answers show the full worked solution — read it, then the next question gives you another shot at the same idea. Aim for a Winny Score of 80+.