Probability (Higher - Unit 1)

Topic:Probability
Estimated teaching time:Higher 5.5 hours - 6.5 hours

Specification references (in recommended teaching order)

S5.1 Understand and use the vocabulary of probability and the probability scale.
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S5.2 Understand and use estimates or measures of probability from theoretical models (including equally likely outcomes), or from relative frequency.
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S5.3 List all outcomes for single events, and for two successive events, in a systematic way and derive related probabilities.
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S5.4 Identify different mutually exclusive outcomes and know that the sum of the probabilities of all these outcomes is 1.
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S5.5h Know when to add or multiply two probabilities: if A and B are mutually exclusive, then the probability of A or B occurring is P(A) + P(B), whereas if A and B are independent events, the probability of A and B occurring is P(A) × P(B)
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S5.6h Use tree diagrams to represent outcomes of compound events, recognising when events are independent.
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S5.7 Compare experimental data and theoretical probabilities.
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S5.8 Understand that if an experiment is repeated, this may – and usually will – result in different outcomes.
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S5.9 Understand that increasing sample size generally leads to better estimates of probability and population characteristics.
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Teaching resources


Probability - Relative frequency - Lesson plan
Downloadable resource in doc format. 29/12/2010
Probability - Mutually exclusive - Lesson plan
Downloadable resource in doc format. 02/12/2010

Probability - Complements - Lesson starter
Downloadable resource in xls format. 29/11/2010
Probability - Order cards - Lesson starter
Downloadable resource in doc format. 29/10/2010

Probability - Three Dice - Problem Sheet
Downloadable resource in doc format. 01/09/2010
Probability - Coloured Counters in a Bag - Problem Sheet
Downloadable resource in doc format. 01/08/2010
Probability - Spinners - Problem Sheet
Downloadable resource in doc format. 01/07/2010

Probability - Two way plenary
Downloadable resource in xls format. 29/06/2010
Probability - Mutually exclusive - Worksheet
Downloadable resource in xls format. 29/05/2010
Probability tree activity
Defining probability using a probability tree25/04/2010

Probability - Homework Sheet and Mark Scheme
Downloadable resource in doc format. 08/03/2010
Probability - Homework Sheet
Downloadable resource in doc format. 01/03/2010

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Exam questions and revision materials.

Please note that, due to the overlap of C/D questions, some material may have been tagged as appropriate for both Foundation and Higher tier. Equally, due to the nature of some questions, different parts of a question may assess different topics. Teachers are advised to ensure learners have covered all of the question content before using such questions.

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