problem
Approaching midnight changing smallest step
Liz played Approaching Midnight and wondered how changing the smallest step size affects the game.
Exploring and noticing
problem
Approaching midnight start time
Bernard played Approaching Midnight and wondered whether the start time affects who wins.
problem
Approaching midnight first or second?
Jennie tried the Approaching Midnight game and wondered if it matters whether you go first or second.
problem
Approaching midnight the ultimate
Want a serious challenge? Have a look at these ideas for changing the Approaching Midnight game.
problem
Approaching midnight taking it further
Here we offer some suggestions about how you could take the Approaching Midnight game further.
problem
Approaching midnight get started
Like a bit of help getting into the game? Then have a look at this.
problem
Back in time
Age
14 to 16
Challenge level
How many times a day does a 24 hour digital clock look the same when reflected in a horizontal line?
problem
Halloween day
Age
11 to 14
Challenge level
One year there were exactly four Tuesdays and four Fridays in October. On what day of the week was Halloween.
problem
Collatz-ish
Age
14 to 16
Challenge level
A sequence is generated using these rules. For which values of n is the nth term equal to n?