Quick links to Front matter, Back matter, and:

**Part One**: Ch 1: Introduction, Ch 2: Speed, Ch 3: Area, Ch 4: Fundamental theorem, Ch 5: Limits

**Part Two**: Ch 6: Derivatives, Ch 7: Toolkit, Ch 8: Extreme, Ch 9: Optimization, Ch 10: Economics

**Part Three**: Ch 11: Hard way, Ch 12: Easy way, Ch 13: Revisited, Ch 14: Physics, Ch 15: Conclusion

**Page 15: I have this dream… **

**Page 16-17: Nothing seems simpler than speed… // …but what exactly does speed measure? **

**Pages 18-19: The most obvious interpretation of 60 miles an hour… // We can try to zero in on the answer…**

*MB: On p. 18 and following you are using speed to illustrate the instantaneous nature of the derivative. You should add, though, that if speed is constant then indeed x = vt, because on p. 22 and thereafter you again use speed as the (constant) slope of x vs t.*

**Pages 20-21: The truth is that saying what speed is not… // Trying to figure it all out…**

**Pages 22-23: Consider a car moving at a constant speed. // In those examples, the slope doesn’t change…**

*WM: I would still recommend on page 22, that you have a character somewhere thinking “Slope? Oh, yeah, that’s just rise/run” with an appropriate drawing. (It’s my least favorite definition of slope, but it seems to be the one being taught incessantly, so it’s the one I recommend you use.)*

**Pages 24-25: An apple thrown straight up in the air… // …and we can see those speed changes…**

**Pages 26-27: We can try to zero in on the answer… // The more we zero in…**

**Page 28: This similarity shouldn’t be surprising…**

Quick links to Front matter, Back matter, and:

**Part One**: Ch 1: Introduction, Ch 2: Speed, Ch 3: Area, Ch 4: Fundamental theorem, Ch 5: Limits

**Part Two**: Ch 6: Derivatives, Ch 7: Toolkit, Ch 8: Extreme, Ch 9: Optimization, Ch 10: Economics

**Part Three**: Ch 11: Hard way, Ch 12: Easy way, Ch 13: Revisited, Ch 14: Physics, Ch 15: Conclusion