Dancing

A Maths Starter of The Day

 

 

 

 

 

 

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"We thought that this was a totally cushtie starter and Lydia figured out that it must be the (LCM 0f 2,3 4 and 5) +1. Keep them coming Transum. As Depeche Mode said in 1983 - "We just can't get enough"!"

Mr Heeley's Y7 Krew, Rawthorpe High in da Hud
Monday, January 28, 2008

 

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This starter has scored a mean of 4.2 out of 5 based on 40 votes.
 

  

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One answer is 61
but there are more!

61 is the lowest common multiple of 2, 3, 4 and 5 plus 1


Teacher, do your students have one to one access to computers?

Whether your students each have a TabletPC or share a desktop PC, this activity lends itself to eLearning (Engaged Learning).

Students could use a spreadsheet to create a list of possible numbers of people at the dance. Columns could be set up to show the remainder after dividing by 2 or 3 etc. The MOD function could be used for this:

Eg =MOD(A7,4) shows the remainder when the number in cell A7 is divided by 4.

What if the problem was changed? What if the group sizes were 3,5,7 and 8?