These strategy games are related to Approaching Midnight. Have a go at them. What do you notice? What is the same and what is different about the games if you compare them?
problem
Nim-7
Age
5 to 11
Challenge level
Can you work out how to win this game of Nim? Does it matter if you go first or second?
problem
Got it
Age
7 to 14
Challenge level
A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.
problem
Stop the clock
Age
5 to 7
Challenge level
This is a game for two players. Can you find out how to be the first to get to 12 o'clock?