How many different ways can four people stand in line?
Note for Teacher: Click and drag the characters above to help explain the task.
Topics: Starter  Combinations  Investigations  Probability
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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: Transum.org/go/?Start=March12 However it would be better to assign one of the student interactive activities below. 

Here is the URL which will take them to the Systematic Listing activity.
Here is a solution to this problem with at least one mistake.
Can you spot the mistake(s)?
In how many ways can 5, 10 or 100 people stand in line?
In how many different ways can the letters in the word Transum be arranged?
In how many different ways can the letters in the word Google be arranged?
See the National Curriculum page for links to related online activities and resources.