Cracked Clock

A clock broke into two pieces. The numbers on each of the pieces add up to the same total. Draw a diagram to show how the clock cracked

London

 

 

Starter of The Day Menu | Transum Software


 
Web Transum

Keywords: Starter | Arithmetic | Problem Solving

"Find the starters wonderful; students enjoy them and often want to use the idea generated by the starter in other parts of the lesson. Keep up the good work"

*Ruth Seward, Hagley Park Sports College
Tuesday, May 02, 2006

 

"We think that this was very good. We liked the clock, in fact we thought it was a cracking starter!
Maths rules, Cushtie!"

Y8 set 1 Rawthorpe High School, The Cushtie Krew
Thursday, May 24, 2007

 

"The question can be extended to 'the clock is broken into three pieces with equal sum of 26 -- piece one contains numbers 11, 12, 1, and 2; piece two contains 3, 4, 9, & 10; the rest is piece three'.
Equally, it can be broken into 6 pieces with an equal sum of 13 -- piece one has 12 and 1; piece two has 2 and 11; piece three 3 and 10."

Sue, St Albans
Thursday, May 24, 2007

 

"This problem also works by breaking the clock into 3 pieces and 6 pieces. The sum of all the numbers around the clock (1 + 2 + 3...10 + 11 + 12) equals 78. 78 is divisible by 3 and 6. "

Russ Skinner, Winnipeg, MB
Thursday, May 24, 2007

 

How did you use this starter? Can you suggest how teachers could present or develop this resource? Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for Maths teachers anywhere in the world. Click here to enter your comments.

If you don't have the time to provide feedback we'd really appreciate it if you could give this page a score! We are constantly improving and adding to these starters so it would be really helpful to know which ones are most useful. Simply click on a button below:
 
Excellent, I would like to see more like this
Good, achieved the results I required
Satisfactory
Didn't really capture the interest of the students
Not for me! I wouldn't use this type of activity.

This starter has scored a mean of 4.3 out of 5 based on 16 votes.
 

  

Previous Day | This starter is for 24 May | Next Day


Visit the Transum Online Shop


 

 

 

Answer

Cracked Clock