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From users who are members of Transition to university :
|Christian Lawson-Perfect||said||Ready to use||2 years, 10 months ago|
|Bradley Bush||said||Needs to be tested||6 years, 2 months ago|
|Hannah Aldous||said||Needs to be tested||6 years, 2 months ago|
|Lauren Richards||said||Has some problems||6 years, 2 months ago|
|Vicky Hall||said||Has some problems||6 years, 2 months ago|
From users who are not members of Transition to university :
|Ashley Cusack||said||Has some problems||2 years, 10 months ago|
|lucia ramsey||said||Ready to use||4 years, 4 months ago|
|Deirdre Casey||said||Has some problems||5 years, 10 months ago|
Christian Lawson-Perfect 6 years, 2 months ago
Saved a checkpoint:
The gaps are all set as "mathematical expression", but there's no reason they shouldn't be "number entry" (apart from the formula part, obv.)
The parts of this question aren't coherent; you could keep the same sequence throughout, and ask the student to:
- Find the common ratio
- Give the formula for the $n$th term
- Calculate a given term.
Lauren Richards commented 6 years, 2 months ago
- Make sure i) and ii) etc are in italics both in the parts and the advice.
- I think I would capitalise "Common ratio" in part a).
- Advice content for a) is fine.
- Where you have stated what the formula for the geometric sequence is in part b) of the advice, I think you should explain that a is the first term and r is the common ratio.
- Make sure you use displaystyle to make the formula large.
- Think there might be a slight glitch in the advice of c) where you are trying to figure out the common ratio, it says a*a^3 instead of 375 as it was supposed to be in this case.
- Typo in the last sentence of the advice - it says "we can write substitute them into the formula..." - "We" should be capitalised and just scrap write.
Vicky Hall commented 6 years, 2 months ago
I have added a sentence to the statement to explain what is meant by the common ratio. I think part a) should include one sequence with a positive integer ratio, one with a negative integer ratio and one with a fractional ratio to cover all possibilities.
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This question is used in the following exams:
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