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Probability - PowerPoint PPT Presentation


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Probability. How likely is an event to occur? What are the chances of that happening??!!. Lesson objectives:. To understand the terms ‘equal chance’ and ‘outcome’ when thinking about probability. To complete a maths investigation involving tossing a coin and rolling a dice!

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Presentation Transcript
probability

Probability

How likely is an event to occur?

What are the chances of that happening??!!

lesson objectives
Lesson objectives:
  • To understand the terms ‘equal chance’ and ‘outcome’ when thinking about probability.
  • To complete a maths investigation involving tossing a coin and rolling a dice!

- to test the ‘equal chance’ theory!

mathematical vocabulary
Mathematical Vocabulary
  • We can describe the probability or chance of an event happening by saying:
  • It is IMPOSSIBLE.
  • It is UNLIKELY.
  • It is LIKELY.
  • It is CERTAIN.
we discussed these
We discussed these:
  • If you toss a coin you have an equal chance of getting a head or a tail. Heads or tails are the ‘outcomes’.
  • If a baby is born it has an equal chance of being a boy or a girl. Boy or girl are the ‘outcomes’.
  • If you roll a dice you have an equal chance of getting the number 1, 2, 3, 4, 5 or 6! These scores are the ‘outcomes’.
today s task
Today’s task:
  • We are going to carry out a maths investigation.
  • We are going to investigate whether we have an equal number of heads and tails when we toss a coin 30 times.
  • We will also investigate whether we get an equal number of 1s, 2s, 3s, 4, 5s and 6s when we roll a dice 30 times.
  • We will record our findings.
what do you think we will find out
What do you think we will find out?
  • Perhaps we will have 15 heads and 15 tails when we toss our coin 30 times??
  • Perhaps we will have each number on the dice 5 times. (five scores of 1, five scores of 2 etc.)
  • It’s up to you to find out!!!!
did we achieve out learning objectives today
Did we achieve out learning objectives today?
  • We understand what is meant by the terms ‘equal chance’ and ‘outcomes’.
  • We have carried out an investigation into ‘equal chance’.
  • We have recorded our findings.
things to think about
Things to think about!
  • If we rolled 2 coins what possible outcomes could we get?
  • If we rolled more than 1 dice what possible outcomes could we get?
  • What would our chances of getting 2 heads or a 6 be like then?!!!
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