Other tags that relate to Take the Right Angle
Angles - points, lines and parallel lines. Working systematically. Addition & subtraction. Visualising. Mass and weight. Time. Clock. GeoGebra. Length/distance. Speed and acceleration.There are 18 results
Broad Topics > Physical and Digital Manipulatives > Clock
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.
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.
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?
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?
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.
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.
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?
Clocks
Age 7 to 11
Challenge Level
These clocks have been reflected in a mirror. What times do they say?
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?
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?
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.
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?
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.
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?
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!
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.
NRICH is part of the family of activities in the Millennium Mathematics Project.