Looking at the graph - when was the person moving fastest? Slowest?
Can you adjust the curve so the bead drops with near constant
Points off a rolling wheel make traces. What makes those traces
What is the quickest route across a ploughed field when your speed
around the edge is greater?
A space craft is ten thousand kilometres from the centre of the
Earth moving away at 10 km per second. At what distance will it
have half that speed?
Build series for the sine and cosine functions by adding one term
at a time, alternately making the approximation too big then too
small but getting ever closer.
Excellent use of a spreadsheet to help with "trial and improvement", plus good graph sketching to really see what's going on.
Go to last month's problems to see more solutions.
An article introducing the ideas of differentiation.
A Sudoku with clues as ratios.
Can you coach your rowing eight to win?