Myths about teaching can hold you back
- Year 9
Voting systems
I can understand other existing voting systems.
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Lesson details
Key learning points
- With the Single Transferable Vote (STV) , the opinions in parliament match the strength of support in the country.
- With the Alternative Vote (AV) your constituency gets an MP the majority support
- Different systems offer different benefits for voters and officials
Keywords
Single Transferable Vote (STV) - With the Single Transferable Vote (STV) , the opinions in parliament match the strength of support in the country.
Alternative vote (AV) - With the Alternative Vote (AV), your constituency gets an MP the majority support.
Common misconception
Mixing up STV and AV as both involve ranking candidates from favourite to least.
With STV, excess votes from the winning candidates are also reassigned.
To help you plan your year 9 maths lesson on: Voting systems, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 9 maths lesson on: Voting systems, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 3 maths lessons from the Thinking critically with maths unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
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Prior knowledge starter quiz
6 Questions
Q1.Here is a formula. If the values for $$a, b, c$$ and $$d$$ are known, what is a valid first step?
Q2.Here is a formula. If the values for $$a, b, c$$ and $$d$$ are known and substituted in, what is a valid next step?
Q3.Here is a formula. If $$a = 5, b = 7, c = 19$$ and $$d = 11$$ what does the numerator evaluate to?
Q4.Here is a formula. If $$a = 5, b = 7, c = 19$$ and $$d = 11$$ what does the denominator evaluate to?
Q5.Here is a formula. If $$a = 5, b = 7, c = 19$$ and $$d = 11$$ which of the following is correct?
Q6.Here is a formula. If $$a = 5, b = 7, c = 19$$ and $$d = 11$$ what is the value of $$h$$?
Assessment exit quiz
6 Questions
Q1.With the (STV), the opinions in parliament match the strength of support in the country.
Q2.With the (AV), your constituency gets an MP the majority support.
Q3.If the quota of votes to be elected is 34 561 and a candidate receives 42 983 votes, how many votes are reassigned under random selection?
Q4.If the quota of votes to be elected is 34 561 and a candidate receives 42 983 votes, under fractional transfers how much is a reassigned vote worth (to 3 d.p.)?
Q5.1 891 457 votes are cast. Under the AV system, how many votes are needed to win?
Q6.7 541 980 votes are cast. Under the AV system, how many votes are needed to win?