Time

There are 102 NRICH Mathematical resources connected to Time
Stop the Clock
problem

Stop the Clock

Age
5 to 7
Challenge level
filled star filled star filled star
This is a game for two players. Can you find out how to be the first to get to 12 o'clock?
Lengthy journeys
problem

Lengthy journeys

Age
7 to 11
Challenge level
filled star empty star empty star
Investigate the different distances of these car journeys and find out how long they take.
All in a jumble
problem

All in a jumble

Age
11 to 14
Challenge level
filled star filled star empty star
My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.
Clocking off
problem

Clocking off

Age
7 to 16
Challenge level
filled star empty star empty star
I found these clocks in the Arts Centre at the University of Warwick intriguing - do they really need four clocks and what times would be ambiguous with only two or three of them?
Street Lamps
problem

Street Lamps

Age
11 to 14
Challenge level
filled star empty star empty star
Walking up a steep hill, I pass 10 equally spaced street lamps. How long do I take to walk from the first lamp to the last?
Decimal Time
problem

Decimal Time

Age
11 to 14
Challenge level
filled star filled star empty star
Use the clocks to investigate French decimal time in this problem. Can you see how this time system worked?
Time Line
problem

Time Line

Age
5 to 7
Challenge level
filled star filled star empty star
Describe what Emma might be doing from these pictures of clocks which show important times in her day.
Two Clocks
problem

Two Clocks

Age
7 to 11
Challenge level
filled star filled star empty star
These clocks have only one hand, but can you work out what time they are showing from the information?
Decimal Clock
problem

Decimal Clock

Age
11 to 14
Challenge level
filled star filled star empty star
A decimal clock is started at midnight. What time would it show at 6 o'clock in the morning?