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Posted 22nd Jun

CASIO FX-991EX Advanced Scientific Calculator (UK Version), best price I could find, usually well over £20.

Posted 22nd Jun

CASIO FX-991EX Advanced Scientific Calculator (UK Version), best price I could find, usually well over £20.

Edited by:"RaiKush" 22nd JunThere is some out of date debate online regarding whether this device is acceptable for GCSE. Ignore it. This calculator is within the guidance rules and was used by most students in my son's school this year.

Edited by:"89quidyoucantgowrong" 22nd JunAgreed, great that you don't have to pay over the odds to get them from abroad anymore.

As you say, totally legal for exams because the functions that would stop it being legal need a smartphone to use with it which you can't take into exams. Saw my eldest through further maths a-level and he's now using it at uni.

Edited by:"b1g1an" 22nd Jun1) These are GREAT but not necessary for GCSE Maths.

2) These are REQUIRED for A Level maths - if you know someone starting A Level maths this September they should pick this up now.

You

don'tneed a graphics calculator for A Level maths although it can be useful in a very small number of cases if you know they will spend time to learn how to use it properly.I had a graphical calculator back in 1991 which came in very handy for "sketch the function..." exam questions

yeah it is very useful. you would have to show working out but its great for checking answers

The problem is that there are very few 'sketch the function' questions. Might be 3-5 marks out of 300 so up to individual circumstances whether that's worth the £100-120 investment. I've also seen lots of students have a graphics calculator, never learn how to take advantage of it, and revert back to the £15-20 ones so it ends up being a total waste.

Depends what you're studying I suppose. I found it useful anyway and it didn't cost as much as you suggest. However, it depleted batteries at a fair old rate.

its 30 if you buy from your school

Which part of the A-level syllabus specifically requires this calculator over the fx-83/85?

Statistics stuff mainly - it calculates probabilities for the normal distribution and binomial distributions for you. The normal distribution tables aren't in the formula booklet anymore so you actively need this calculator.

Nice to have: it solves quadratics and cubics, some simultaneous equations, does lots of other statistics calculations (that you could do by hand -- but why would you?) and can do numerical differentiation/definite integration so you can check answers easily.

Not where I work - is this the new colour FX-CG50 (£100-£120) or the older black and white 9860/9750s (around £50-70)?

Wouldn't recommend the 9750s anymore as they are really showing their age with lack of natural display.

Graph output on the CG50 is much clearer as it's a proper colour display.

its the CG50 - i believe your sixth form needs to be working with casio in some way. most colleges or sixth forms sell them for 30 i believe