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From users who are members of Transition to university :
Christian LawsonPerfect  said  Ready to use  4 years ago 
Elliott Fletcher  said  Needs to be tested  4 years ago 
Chris Graham  said  Has some problems  4 years ago 
Hannah Aldous  said  Needs to be tested  4 years ago 
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Christian LawsonPerfect 4 years ago
Gave some feedback: Ready to use
Christian LawsonPerfect 4 years ago
Saved a checkpoint:
Lots of little edits  I basically disagreed with every formatting choice you made!
This is a good question.
Elliott Fletcher 4 years ago
Gave some feedback: Needs to be tested
Chris Graham 4 years ago
Gave some feedback: Has some problems
Chris Graham 4 years ago
Ok, so we'e basically torn up and rewritten the original question... This looks good, however as for previous questions on arithmetic series, can we have a table of the values and differences in the advice to part (a) please.
I would change "by his" in the statement to "after his", as it implies the amount before he receives money on his birthday. I know that you state that it includes the amount after, but this appears contradictory.
I'm not keen on $n$ being "the amount of numbers in a sequence". So if you have 10 terms in the sequence but you're calculating the $a_5$ term, do you still use $n=10$? "Term number" is terminology that is often used.
Chris Graham 4 years ago
Sorry, you are quite right, I meant to say interest! If you are wording the question in a way that it is "What contribution...?" then you don't really need this anyway, so I have removed those references.
Elliott Fletcher 4 years ago
Published this.Elliott Fletcher 4 years ago
Gave some feedback: Needs to be tested
Elliott Fletcher 4 years ago
Is inflation the right term that we need or should it be interest?
Chris Graham 4 years ago
As discussed, the sum of candles on a birthday cake over several years makes little sense either. Why would you want to know?
Parents adding money to a bank account is much better, and then you could ask (excluding inflation) how much money the parents have added over $n$ years.
This can also be split into two parts, firstly calculate $a_n$ for the given $n$, and then the sum of the series, with a step for each part.
Chris Graham 4 years ago
The step doesn't give enough useful information, and neither does it give the opportunity for the student to break down the question: so the first step would be to find $a_n$, but the step doesn't tell me how to do that. There's an easy opportunity to have gaps here for the common difference, the final term, and so on.
I also have major issues with the context. I'm led to believe Bruce receives 93 slices of his birthday cake on his 50th birthday. How big are these slices? I can only assume that they are getting smaller at a rate inversely proportional to the increase in slices. How about changing to the number of candles? 93 candles on a cake is still a stretch, but slightly more plausible.
Chris Graham 4 years ago
Gave some feedback: Has some problems
Hannah Aldous 4 years ago
Gave some feedback: Needs to be tested
Hannah Aldous 4 years ago
Created this as a copy of Compute the partial sum of an arithmetic sequence.No variables have been defined in this question.
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This question is used in the following exams:
 Sequences by Elliott Fletcher in Elliott's workspace.
 Arithmetic sequences by Christian LawsonPerfect in Transition to university.
 Money by Christian LawsonPerfect in Transition to university.
 Questions using the random person extension by Christian LawsonPerfect in Christian's workspace.
 P12  Series & Sequences by Rob Beckett in Rob's workspace.
 Arithmetic sequences by Simon Thomas in Maths support.
 Sharika's copy of Numerical reasoning  money (printed worksheet) by Sharika Mesba in Sharika's workspace.
 MAURICE by Sharika Mesba in Sharika's workspace.
 Arithmetic Quiz by Chetna Patel in Chetna's workspace.
 Jean jinhua's copy of Arithmetic sequences by Jean jinhua Mathias in Maths 32020.
 Types of sequences and arithmetic sequences by Jean jinhua Mathias in Maths 32020.