Agenda
- Number talk: Graph Talks — an elevator’s height–time graph: where is the ride comfortable, and where is it not?
- Random groups: from a position graph, build the velocity graph — then the velocity’s velocity; what does a passenger feel?
- Consolidate: Motion on a Line — velocity, acceleration, and what the second derivative measures
- Task time: Smooth Landing — each demand names its derivative; which of yours is still misbehaving at touchdown?
Things to do before our next class
- Journal: your speedometer and your stomach measure different derivatives. Which measures which, and why?