Resources tagged with Clock similar to Take the Right Angle:
Other tags that relate to Take the Right Angle
Clock. Visualising. Length/distance. Time. Factors and multiples. Working systematically. Angles - points, lines and parallel lines. Interactivities. Addition & subtraction. Games.There are 19 results
Broad Topics > Mathematics Tools > Clock
Take the Right Angle
Age 7 to 11 Challenge Level:
How many times in twelve hours do the hands of a clock form a right angle? Use the interactivity to check your answers.
Wonky Watches
Age 7 to 11 Challenge Level:
Stuart's watch loses two minutes every hour. Adam's watch gains one minute every hour. Use the information to work out what time (the real time) they arrived at the airport.
5 on the Clock
Age 7 to 11 Challenge Level:
On a digital clock showing 24 hour time, over a whole day, how many times does a 5 appear? Is it the same number for a 12 hour clock over a whole day?
Ten Green Bottles
Age 7 to 11 Challenge Level:
Do you know the rhyme about ten green bottles hanging on a wall? If the first bottle fell at ten past five and the others fell down at 5 minute intervals, what time would the last bottle fall down?
Watch the Clock
Age 7 to 11 Challenge Level:
During the third hour after midnight the hands on a clock point in the same direction (so one hand is over the top of the other). At what time, to the nearest second, does this happen?
Sweeping Hands
Age 7 to 11 Challenge Level:
Use your knowledge of angles to work out how many degrees the hour and minute hands of a clock travel through in different amounts of time.
Times
Age 7 to 11 Challenge Level:
Which times on a digital clock have a line of symmetry? Which look the same upside-down? You might like to try this investigation and find out!
What Is the Time?
Age 5 to 11 Challenge Level:
Can you put these times on the clocks in order? You might like to arrange them in a circle.
Clocked
Age 11 to 14 Challenge Level:
Is it possible to rearrange the numbers 1,2......12 around a clock face in such a way that every two numbers in adjacent positions differ by any of 3, 4 or 5 hours?
On Time
Age 11 to 14 Challenge Level:
On a clock the three hands - the second, minute and hour hands - are on the same axis. How often in a 24 hour day will the second hand be parallel to either of the two other hands?
Digital Times
Age 11 to 14 Challenge Level:
Which segment on a digital clock is lit most each day? Which segment is lit least? Does it make any difference if it is set to 12 hours or 24 hours?
Two Clocks
Age 7 to 11 Challenge Level:
These clocks have only one hand, but can you work out what time they are showing from the information?
Clocks
Age 7 to 11 Challenge Level:
These clocks have been reflected in a mirror. What times do they say?
Clock Hands
Age 7 to 11 Challenge Level:
This investigation explores using different shapes as the hands of the clock. What things occur as the the hands move.
Hands Together
Age 11 to 14 Challenge Level:
Sometime during every hour the minute hand lies directly above the hour hand. At what time between 4 and 5 o'clock does this happen?
Clock Face
Age 7 to 11 Challenge Level:
Where can you draw a line on a clock face so that the numbers on both sides have the same total?
Numbers Numbers Everywhere!
Age 5 to 11
Bernard Bagnall recommends some primary school problems which use numbers from the environment around us, from clocks to house numbers.
The Time Is ...
Age 7 to 11 Challenge Level:
Can you put these mixed-up times in order? You could arrange them in a circle.
NRICH is part of the family of activities in the Millennium Mathematics Project.