Unit 2, Day 9

Agenda

1. Number talk: True or False — a function and its derivative can have the same period
2. Random groups: tangent slopes on $y=\sin x$, plotted point by point — the derivative’s graph looks suspiciously familiar
3. Consolidate: Derivatives of Sinusoidal Functions — and why the answer is only this clean in radians
4. Launch: Smooth Landing — a descent profile with three demands; What Makes a Model Good frames the judging
5. Practise: Exponential and Sinusoidal Derivatives Practice, the rest

Things to do before our next class

• Read Smooth Landing with your partner; translate each demand into a statement about a derivative.