What is the longest sequence you can make from the numbers below?
Each number in the sequence must be a factor or multiple of the previous number.
Topics: Starter | Arithmetic | Factors | Mental Methods | Number
Ten mins starter got year 6 thinking. Take away challenge to find longest sequence @Transum #WMSMaths pic.twitter.com/IiuL0ODV2O— Miss McElderry WMS (@McelderryMiss) July 12, 2017
@Transum Loving #Flabbergasted this morning! Top score here is 20 in a row! @NetZeroLee #75019math pic.twitter.com/i2pUcyb7Su— MayV(@MayV1) May 8, 2019
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Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.
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Teacher, do your students have access to computers such as tablets, iPads or Laptops? This page was really designed for projection on a whiteboard but if you really want the students to have access to it here is a concise URL for a version of this page without the comments:
However it would be better to assign one of the student interactive activities below.
Here is the URL which will take them to the game version of this activity.
Here is the URL which will take them to a related student activity.
What is the longest sequence that can be generated if the numbers 1 to 100 are available?
See Flabbergasted Game.
See the National Curriculum page for links to related online activities and resources.